Reliever numbers are super volatile in short samples, guys
Richards does have the second highest whiff rate on the team, behind only Romano. His K and BB rates are not wildly different from last year when he was okay. His FB velo is even up this year.
He is throwing too many balls of course and getting hit. How much is bad luck? How much is transitory control problems?
He doesn't look like someone who is broken to me, based on the indicators, so I don't see why he should be off limits in the 5th inning of a game the SP could not go deep in.
In fact he might be pitching better than David Phelps on measures of talent....