When you act decisively, you cauterize all the emotional angst that would normally come afterwards.
Think of the great feelings you'll have when you can show your client(s) how you sidestepped large drawdowns, took profits when your names reversed, and didn't do things like buy pullbacks in a weak market that kept going down.
Traders and portfolio managers have to be leaders, so show decisiveness and leadership.
Someone has to be in control, and it might as well be you.
But you have to set it up that way from the beginning.