Martinez gave up on the game and left Hell in to save the pen, he only started playing to win after the slam. He's not leading this team he's along for the ride.
Honestly the pen is cooked currently. Grace probably will be unavailable again tonight, Madson is probably next in line for the DL, we saw what happened to Herrera (who seems to be having a rough adjustment) and Miller and they both probably only pitched because *someone* had to. With an early 7-Run deficit, a team that hasn’t been able to score lately, and a game with no starter in 4 days, you need more of a reason to push the relievers than just “Hellickson is getting shelled.” You burn them out if there’s a decent chance it will result in a win, but not till after your offense shows you it can do something other than lay there like an old rug.