Since you said you already have a PH and C on your bench, I'd definitely go with Trammell and Higley. Good defenders with speed. I like guys like that because they come in for defense when you're ahead and they're available to pinch run in a key spot when you're behind. Makes them useful in nearly every game. Haven't really looked at your roster, but since you're in the AL instead of the NL, too many bench PHs that can't field would be a waste.