While TH has been consistently bad this season, I think we need to put into perspective that ALL GKs will have bad runs of form. Hell, even De Gea got beaten near post on Sunday for a bad goal and if that were TH we'd be fuming on here. And then what do we make of Neuer's whiff for Gladbach's first goal this weekend, I mean I could not believe my eyes when that went in - that goal was worse than any that TH has let in this year.
All that being said, TH has been more than serviceable over his time at the club and deserves the benefit of the doubt, IMO. However, I believe that benefit of the doubt period has passed and Robles should have a go in the remaining games, especially since it would seem we've avoided relegation and the pressure should be off, relatively speaking. I'm not ready though to throw in the towel in TH, as he could 1) have a great summer and come out next season playing well again or 2) we'd need a serviceable No. 2 anyway if we sign someone else. If Robles proves he isn't the clear cut future by the beginning of next season, then he needs to go on on loan to a championship side.