diff --git a/tempest/scenario/manager.py b/tempest/scenario/manager.py
index 55d4a52..ad8e224 100644
--- a/tempest/scenario/manager.py
+++ b/tempest/scenario/manager.py
@@ -14,7 +14,6 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import os
 import subprocess
 
 import netaddr
@@ -22,7 +21,6 @@
 from tempest_lib import exceptions as lib_exc
 
 from tempest import clients
-from tempest.common import cred_provider
 from tempest.common import credentials
 from tempest.common.utils import data_utils
 from tempest.common.utils.linux import remote_client
@@ -50,7 +48,6 @@
         cls.manager = clients.Manager(
             credentials=cls.credentials()
         )
-        cls.admin_manager = clients.Manager(cls.admin_credentials())
 
     @classmethod
     def setup_clients(cls):
@@ -63,7 +60,6 @@
         # Compute image client
         cls.images_client = cls.manager.images_client
         cls.keypairs_client = cls.manager.keypairs_client
-        cls.networks_client = cls.admin_manager.networks_client
         # Nova security groups client
         cls.security_groups_client = cls.manager.security_groups_client
         cls.servers_client = cls.manager.servers_client
@@ -542,6 +538,14 @@
         super(NetworkScenarioTest, cls).skip_checks()
         if not CONF.service_available.neutron:
             raise cls.skipException('Neutron not available')
+        if not credentials.is_admin_available():
+            msg = ("Missing Identity Admin API credentials in configuration.")
+            raise cls.skipException(msg)
+
+    @classmethod
+    def setup_credentials(cls):
+        super(NetworkScenarioTest, cls).setup_credentials()
+        cls.admin_manager = clients.Manager(cls.admin_credentials())
 
     @classmethod
     def resource_setup(cls):
@@ -1283,9 +1287,17 @@
     """
 
     @classmethod
+    def skip_checks(cls):
+        super(EncryptionScenarioTest, cls).skip_checks()
+        if not credentials.is_admin_available():
+            msg = ("Missing Identity Admin API credentials in configuration.")
+            raise cls.skipException(msg)
+
+    @classmethod
     def setup_clients(cls):
         super(EncryptionScenarioTest, cls).setup_clients()
-        cls.admin_volume_types_client = cls.admin_manager.volume_types_client
+        admin_manager = clients.Manager(cls.admin_credentials())
+        cls.admin_volume_types_client = admin_manager.volume_types_client
 
     def _wait_for_volume_status(self, status):
         self.status_timeout(
@@ -1324,49 +1336,6 @@
             control_location=control_location)
 
 
-class OrchestrationScenarioTest(ScenarioTest):
-    """
-    Base class for orchestration scenario tests
-    """
-
-    @classmethod
-    def skip_checks(cls):
-        super(OrchestrationScenarioTest, cls).skip_checks()
-        if not CONF.service_available.heat:
-            raise cls.skipException("Heat support is required")
-
-    @classmethod
-    def credentials(cls):
-        admin_creds = cred_provider.get_configured_credentials(
-            'identity_admin')
-        creds = cred_provider.get_configured_credentials('user')
-        admin_creds.tenant_name = creds.tenant_name
-        return admin_creds
-
-    def _load_template(self, base_file, file_name):
-        filepath = os.path.join(os.path.dirname(os.path.realpath(base_file)),
-                                file_name)
-        with open(filepath) as f:
-            return f.read()
-
-    @classmethod
-    def _stack_rand_name(cls):
-        return data_utils.rand_name(cls.__name__ + '-')
-
-    @classmethod
-    def _get_default_network(cls):
-        networks = cls.networks_client.list_networks()
-        for net in networks:
-            if net['label'] == CONF.compute.fixed_network_name:
-                return net
-
-    @staticmethod
-    def _stack_output(stack, output_key):
-        """Return a stack output value for a given key."""
-        return next((o['output_value'] for o in stack['outputs']
-                    if o['output_key'] == output_key), None)
-
-
 class SwiftScenarioTest(ScenarioTest):
     """
     Provide harness to do Swift scenario tests.