diff --git a/runtime/src/bank.rs b/runtime/src/bank.rs
index e0f109c7990310..98ba277a683bfc 100644
--- a/runtime/src/bank.rs
+++ b/runtime/src/bank.rs
@@ -60,7 +60,7 @@ use {
         epoch_accounts_hash::{self, EpochAccountsHash},
         epoch_stakes::{EpochStakes, NodeVoteAccounts},
         inline_spl_associated_token_account, inline_spl_token,
-        installed_scheduler_pool::InstalledSchedulerBox,
+        installed_scheduler_pool::InstalledSchedulerBoxInBank,
         message_processor::MessageProcessor,
         rent_collector::{CollectedInfo, RentCollector},
         rent_debits::RentDebits,
@@ -1101,7 +1101,7 @@ pub struct Bank {
 
     /// true when the bank's freezing or destruction has completed
     bank_freeze_or_destruction_incremented: AtomicBool,
-    pub(crate) scheduler: RwLock<InstalledSchedulerBox>,
+    pub(crate) scheduler: RwLock<InstalledSchedulerBoxInBank>,
 }
 
 struct VoteWithStakeDelegations {
@@ -1323,7 +1323,7 @@ impl Bank {
             accounts_data_size_delta_off_chain: AtomicI64::new(0),
             fee_structure: FeeStructure::default(),
             loaded_programs_cache: Arc::<RwLock<LoadedPrograms>>::default(),
-            scheduler: RwLock::<InstalledSchedulerBox>::default(),
+            scheduler: RwLock::<InstalledSchedulerBoxInBank>::default(),
         };
 
         bank.bank_created();
@@ -1622,7 +1622,7 @@ impl Bank {
             accounts_data_size_delta_off_chain: AtomicI64::new(0),
             fee_structure: parent.fee_structure.clone(),
             loaded_programs_cache: parent.loaded_programs_cache.clone(),
-            scheduler: RwLock::<InstalledSchedulerBox>::default(),
+            scheduler: RwLock::<InstalledSchedulerBoxInBank>::default(),
         };
 
         let (_, ancestors_time_us) = measure_us!({
@@ -1949,7 +1949,7 @@ impl Bank {
             accounts_data_size_delta_off_chain: AtomicI64::new(0),
             fee_structure: FeeStructure::default(),
             loaded_programs_cache: Arc::<RwLock<LoadedPrograms>>::default(),
-            scheduler: RwLock::<InstalledSchedulerBox>::default(),
+            scheduler: RwLock::<InstalledSchedulerBoxInBank>::default(),
         };
         bank.bank_created();
 
diff --git a/runtime/src/bank_forks.rs b/runtime/src/bank_forks.rs
index de3411b2f96e2c..d68945b7a0d1cc 100644
--- a/runtime/src/bank_forks.rs
+++ b/runtime/src/bank_forks.rs
@@ -67,7 +67,7 @@ pub struct BankForks {
     pub accounts_hash_interval_slots: Slot,
     last_accounts_hash_slot: Slot,
     in_vote_only_mode: Arc<AtomicBool>,
-    pub(crate) scheduler_pool: InstalledSchedulerPoolArc,
+    pub(crate) scheduler_pool: Option<InstalledSchedulerPoolArc>,
 }
 
 impl Index<u64> for BankForks {
@@ -190,7 +190,7 @@ impl BankForks {
             accounts_hash_interval_slots: std::u64::MAX,
             last_accounts_hash_slot: root,
             in_vote_only_mode: Arc::new(AtomicBool::new(false)),
-            scheduler_pool: InstalledSchedulerPoolArc::default(),
+            scheduler_pool: None,
         }
     }
 
diff --git a/runtime/src/installed_scheduler_pool.rs b/runtime/src/installed_scheduler_pool.rs
index 2c2355967c6d61..83408d1c86107c 100644
--- a/runtime/src/installed_scheduler_pool.rs
+++ b/runtime/src/installed_scheduler_pool.rs
@@ -38,8 +38,8 @@ use {
 // Send + Sync is needed to be a field of BankForks
 #[cfg_attr(any(test, feature = "test-in-workspace"), automock)]
 pub trait InstalledSchedulerPool: Send + Sync + Debug {
-    fn take_from_pool(&self, context: SchedulingContext) -> SchedulerBox;
-    fn return_to_pool(&self, scheduler: SchedulerBox);
+    fn take_from_pool(&self, context: SchedulingContext) -> InstalledSchedulerBox;
+    fn return_to_pool(&self, scheduler: InstalledSchedulerBox);
 }
 
 #[cfg_attr(any(test, feature = "test-in-workspace"), automock)]
@@ -49,7 +49,7 @@ pub trait InstalledSchedulerPool: Send + Sync + Debug {
 // Send + Sync is needed to be a field of Bank
 pub trait InstalledScheduler: Send + Sync + Debug {
     fn scheduler_id(&self) -> SchedulerId;
-    fn scheduler_pool(&self) -> SchedulerPoolArc;
+    fn scheduler_pool(&self) -> InstalledSchedulerPoolArc;
 
     // Calling this is illegal as soon as schedule_termiantion is called on &self.
     fn schedule_execution(&self, sanitized_tx: &SanitizedTransaction, index: usize);
@@ -70,8 +70,7 @@ pub trait InstalledScheduler: Send + Sync + Debug {
     fn replace_scheduler_context(&mut self, context: SchedulingContext);
 }
 
-pub type SchedulerPoolArc = Arc<dyn InstalledSchedulerPool>;
-pub(crate) type InstalledSchedulerPoolArc = Option<SchedulerPoolArc>;
+pub type InstalledSchedulerPoolArc = Arc<dyn InstalledSchedulerPool>;
 
 pub type SchedulerId = u64;
 
@@ -88,16 +87,16 @@ pub enum WaitReason {
     ReinitializedForRecentBlockhash,
 }
 
-pub type SchedulerBox = Box<dyn InstalledScheduler>;
+pub type InstalledSchedulerBox = Box<dyn InstalledScheduler>;
 // somewhat arbitrary new type just to pacify Bank's frozen_abi...
 #[derive(Debug, Default)]
-pub(crate) struct InstalledSchedulerBox(Option<SchedulerBox>);
+pub(crate) struct InstalledSchedulerBoxInBank(Option<InstalledSchedulerBox>);
 
 #[cfg(RUSTC_WITH_SPECIALIZATION)]
 use solana_frozen_abi::abi_example::AbiExample;
 
 #[cfg(RUSTC_WITH_SPECIALIZATION)]
-impl AbiExample for InstalledSchedulerBox {
+impl AbiExample for InstalledSchedulerBoxInBank {
     fn example() -> Self {
         Self(None)
     }
@@ -182,7 +181,7 @@ impl Deref for BankWithScheduler {
 }
 
 impl BankForks {
-    pub fn install_scheduler_pool(&mut self, pool: SchedulerPoolArc) {
+    pub fn install_scheduler_pool(&mut self, pool: InstalledSchedulerPoolArc) {
         info!("Installed new scheduler_pool into bank_forks: {:?}", pool);
         assert!(self.scheduler_pool.replace(pool).is_none());
     }
@@ -196,7 +195,7 @@ impl BankForks {
 }
 
 impl Bank {
-    pub fn install_scheduler(&self, scheduler: SchedulerBox) {
+    pub fn install_scheduler(&self, scheduler: InstalledSchedulerBox) {
         let mut scheduler_guard = self.scheduler.write().expect("not poisoned");
         assert!(scheduler_guard.0.replace(scheduler).is_none());
     }
@@ -318,7 +317,7 @@ mod tests {
         solana_sdk::system_transaction,
     };
 
-    fn setup_mocked_scheduler_pool(seq: &mut Sequence) -> SchedulerPoolArc {
+    fn setup_mocked_scheduler_pool(seq: &mut Sequence) -> InstalledSchedulerPoolArc {
         let mut mock = MockInstalledSchedulerPool::new();
         mock.expect_return_to_pool()
             .times(1)
@@ -330,7 +329,7 @@ mod tests {
     fn setup_mocked_scheduler_with_extra(
         wait_reasons: impl Iterator<Item = WaitReason>,
         f: Option<impl Fn(&mut MockInstalledScheduler)>,
-    ) -> SchedulerBox {
+    ) -> InstalledSchedulerBox {
         let mut mock = MockInstalledScheduler::new();
         let mut seq = Sequence::new();
 
@@ -353,7 +352,9 @@ mod tests {
         Box::new(mock)
     }
 
-    fn setup_mocked_scheduler(wait_reasons: impl Iterator<Item = WaitReason>) -> SchedulerBox {
+    fn setup_mocked_scheduler(
+        wait_reasons: impl Iterator<Item = WaitReason>,
+    ) -> InstalledSchedulerBox {
         setup_mocked_scheduler_with_extra(
             wait_reasons,
             None::<fn(&mut MockInstalledScheduler) -> ()>,
diff --git a/scheduler-pool/src/lib.rs b/scheduler-pool/src/lib.rs
index 4c3581b584e09d..2b5123573f0d82 100644
--- a/scheduler-pool/src/lib.rs
+++ b/scheduler-pool/src/lib.rs
@@ -16,8 +16,9 @@ use {
     solana_program_runtime::timings::ExecuteTimings,
     solana_runtime::{
         installed_scheduler_pool::{
-            InstalledScheduler, InstalledSchedulerPool, ResultWithTimings, SchedulerBox,
-            SchedulerId, SchedulerPoolArc, SchedulingContext, WaitReason,
+            InstalledScheduler, InstalledSchedulerBox, InstalledSchedulerPool,
+            InstalledSchedulerPoolArc, ResultWithTimings, SchedulerId, SchedulingContext,
+            WaitReason,
         },
         prioritization_fee_cache::PrioritizationFeeCache,
         vote_sender_types::ReplayVoteSender,
@@ -31,7 +32,7 @@ use {
 // types aren't available there...
 #[derive(Debug)]
 pub struct SchedulerPool {
-    schedulers: Mutex<Vec<SchedulerBox>>,
+    schedulers: Mutex<Vec<InstalledSchedulerBox>>,
     log_messages_bytes_limit: Option<usize>,
     transaction_status_sender: Option<TransactionStatusSender>,
     replay_vote_sender: Option<ReplayVoteSender>,
@@ -45,9 +46,9 @@ impl SchedulerPool {
         transaction_status_sender: Option<TransactionStatusSender>,
         replay_vote_sender: Option<ReplayVoteSender>,
         prioritization_fee_cache: Arc<PrioritizationFeeCache>,
-    ) -> SchedulerPoolArc {
+    ) -> InstalledSchedulerPoolArc {
         Arc::new_cyclic(|weak_self| Self {
-            schedulers: Mutex::<Vec<SchedulerBox>>::default(),
+            schedulers: Mutex::<Vec<InstalledSchedulerBox>>::default(),
             log_messages_bytes_limit,
             transaction_status_sender,
             replay_vote_sender,
@@ -64,7 +65,7 @@ impl SchedulerPool {
 }
 
 impl InstalledSchedulerPool for SchedulerPool {
-    fn take_from_pool(&self, context: SchedulingContext) -> SchedulerBox {
+    fn take_from_pool(&self, context: SchedulingContext) -> InstalledSchedulerBox {
         assert!(!context.bank().with_scheduler());
 
         let mut schedulers = self.schedulers.lock().expect("not poisoned");
@@ -75,11 +76,11 @@ impl InstalledSchedulerPool for SchedulerPool {
             scheduler.replace_scheduler_context(context);
             scheduler
         } else {
-            Box::new(Scheduler::spawn(self.self_arc(), context))
+            Box::new(PooledScheduler::spawn(self.self_arc(), context))
         }
     }
 
-    fn return_to_pool(&self, scheduler: SchedulerBox) {
+    fn return_to_pool(&self, scheduler: InstalledSchedulerBox) {
         assert!(scheduler.scheduling_context().is_none());
 
         self.schedulers
@@ -93,14 +94,14 @@ impl InstalledSchedulerPool for SchedulerPool {
 // this will be replaced with more proper implementation...
 // not usable at all, especially for mainnet-beta
 #[derive(Debug)]
-struct Scheduler {
+struct PooledScheduler {
     id: SchedulerId,
     pool: Arc<SchedulerPool>,
     context: Option<SchedulingContext>,
     result_with_timings: Mutex<Option<ResultWithTimings>>,
 }
 
-impl Scheduler {
+impl PooledScheduler {
     fn spawn(pool: Arc<SchedulerPool>, initial_context: SchedulingContext) -> Self {
         Self {
             id: thread_rng().gen::<SchedulerId>(),
@@ -110,12 +111,12 @@ impl Scheduler {
         }
     }
 }
-impl InstalledScheduler for Scheduler {
+impl InstalledScheduler for PooledScheduler {
     fn scheduler_id(&self) -> SchedulerId {
         self.id
     }
 
-    fn scheduler_pool(&self) -> SchedulerPoolArc {
+    fn scheduler_pool(&self) -> InstalledSchedulerPoolArc {
         self.pool.clone()
     }