Showrunner Rule #184: Execs have 2, 4… maybe 6 shows to think about. You only have 1 & your show only has YOU. So… defend your show.
Showrunner Rule #185: Moment you get inkling you might use actor you down “own” (regular) pin’m. Nothing kills story like actor absentitus. Pinning” actor means calling agent to say, “Don’t let them take another job without letting us know first.”