Valentine's a windbag. Always has been.
He really has no business bashing his roster like this publicly. The sad thing is that if he gets fired, he still gets paid.
Managers get traded (see Ozzie, Lou Piniella, Chuck Tanner). If I was in the Red Sox front office, I'd give him a choice: quit, or we're going to look into dealing your contract to an independent league team I in the Yukon. Red Sox would still have to pay him, but he'd have to ride buses to get paid.
"It's not the high price of stardom that bothers me...it's the high price of mediocrity." - Bill Veeck