diff --git a/src/ert/run_models/batch_simulator_run_model.py b/src/ert/run_models/batch_simulator_run_model.py
index 220e00515f2..cf4bc94169d 100644
--- a/src/ert/run_models/batch_simulator_run_model.py
+++ b/src/ert/run_models/batch_simulator_run_model.py
@@ -13,29 +13,25 @@
 from queue import SimpleQueue
 from typing import TYPE_CHECKING, Any, Callable, Dict, List, Optional, TypedDict
 
-import numpy as np
 from ropt.enums import EventType, OptimizerExitCode
 from ropt.plan import OptimizationPlanRunner
 from seba_sqlite import SqliteStorage
 
-import everest
-from ert.analysis import ErtAnalysisError, iterative_smoother_update
-from ert.config import ErtConfig, HookRuntime
+from ert.config import ErtConfig
 from ert.ensemble_evaluator import EvaluatorServerConfig
-from ert.storage import Ensemble, Storage
+from ert.storage import Storage
 from everest.config import EverestConfig
+from everest.jobs import shell_commands
 from everest.optimizer.everest2ropt import everest2ropt
 from everest.simulator import Simulator
 from everest.strings import EVEREST, SIMULATOR_END, SIMULATOR_START, SIMULATOR_UPDATE
 
 from .. import BatchContext
 from ..simulator.batch_simulator_context import Status
-from .base_run_model import BaseRunModel, ErtRunError, StatusEvents
+from .base_run_model import BaseRunModel, StatusEvents
 
 if TYPE_CHECKING:
-    from uuid import UUID
-
-    import numpy.typing as npt
+    pass
 
 
 logger = logging.getLogger(__name__)
@@ -190,10 +186,7 @@ def extract(path_str, key):
             else:
                 jobs: List[JobProgress] = []
                 for fms in progress_queue.steps:
-                    if (
-                        not self._display_all_jobs
-                        and fms.name in everest.jobs.shell_commands
-                    ):
+                    if not self._display_all_jobs and fms.name in shell_commands:
                         continue
                     realization = extract(fms.std_out_file, "geo_realization")
                     simulation = extract(fms.std_out_file, "simulation")
@@ -280,10 +273,8 @@ def __init__(
         self._display_all_jobs = display_all_jobs
         self._result: Optional[Any] = None
         self._exit_code: Optional[OptimizerExitCode] = None
+        self._max_batch_num_reached = False
 
-        # Need to customize:
-        # Runpath creation / deletion
-        # Number of iterations concept .. separate from baserunmodel
         super().__init__(
             config,
             storage,
@@ -296,38 +287,6 @@ def __init__(
 
         self.num_retries_per_iter = 0  # OK?
 
-    def analyzeStep(
-        self,
-        prior_storage: Ensemble,
-        posterior_storage: Ensemble,
-        ensemble_id: UUID,
-        iteration: int,
-        initial_mask: npt.NDArray[np.bool_],
-    ) -> None:
-        self.validate()
-        self.run_workflows(HookRuntime.PRE_UPDATE, self._storage, prior_storage)
-        try:
-            _, self.sies_smoother = iterative_smoother_update(
-                prior_storage,
-                posterior_storage,
-                self.sies_smoother,
-                parameters=prior_storage.experiment.update_parameters,
-                observations=prior_storage.experiment.observation_keys,
-                update_settings=self.update_settings,
-                analysis_config=self.analysis_config,
-                sies_step_length=self.sies_step_length,
-                initial_mask=initial_mask,
-                rng=self.rng,
-                progress_callback=functools.partial(
-                    self.send_smoother_event, iteration, ensemble_id
-                ),
-            )
-        except ErtAnalysisError as e:
-            raise ErtRunError(
-                f"Update algorithm failed with the following error: {e}"
-            ) from e
-        self.run_workflows(HookRuntime.POST_UPDATE, self._storage, posterior_storage)
-
     def _simulation_callback(self, *args, **_):
         logging.getLogger(EVEREST).debug("Simulation callback called")
         ctx = args[0]