As stated by someone else maybe the coach likes what he is doing and who knows what conversations have occurred between he and the coach about helping. I've gone from parent to helper to a helper coach in the matter of a short time before because it was needed. I didn't want to but that's how...
When I make a mistake I let the team know about it. I also let them know when I was taking a calculated risk and it didn't work out. I don't want neither the team nor I to be too cautious yet not too risky but pick and choose when to "take a chance".
To sum up: I tell the team I messed up.