I am usually patient with players - let them play out of a funk. This is a 60 game season - only established players and star prospects get that leash this year. Casali, Colon, Ervin and Jankowski and Davidson (who has played well all told) are all fungible assets in any season but especially in a severely shortened one. Using Garcia, Aquino and Stephenson seems very reasonable - any one of them is likely to better an .083 BA. I'd even hve Lodolo and posssibly Greene up for the bullpen as well. If the guys they would repace were pulling their weight I'd say wait but they aren't. Might as well see what the kids can do and get them some valuable playing time from the bench. Even if they aren't great shakes at first the lessons from being on the big league squad would be invaluable, certainly better than Prasco for their long term development.