As for RT, maybe Webb can be the guy. I just watched this clip of every Luck passing play (and he scrambled on 3-4 of these) vs 49ers. Howard is in on the first 2 snaps, and looks awful. Got beat bad on the 2nd snap. Just wow.
After that it was Webb, and he never got beat, stayed active through the play, good hand fighting. He had one sorta missed block, he dove at the defenders knees and sorta missed, but since Luck got rid of the ball real quick, that defender never had a chance to take advantage.
Granted, I'd want to see his run blocking before annointing him an acceptable starter at RT, but the pass blocking looks alright.
https://www.youtube.com/watch?v=IY2h...ature=youtu.be
edit: also worth pointing out that Smith was in at RG for all those snaps. He was decent. Struggled a couple times, but had more plays where he held his block.