We have a tendency to overrate our talent, and I'm seeing a lot of that in this thread. Let's break down the unit:
Trudo showed quite a bit of promise as a freshman, and has been a valuable contributor, but he plateaued early. That's not to say that he isn't good, but he was good as a frosh and never became great [and even so still might have a shot at the NFL]. I don't know if that is on the coaches or a function of his ability, but I think that many saw the potential early and projected a higher ceiling for him than he actually had.
Palmer has been forced to play out of position these past two years. He'd probably be best at RG, but has had to play RT due to limited tackle depth. And he's actually done a reasonably good job. Kid might be a pro RG.
Foy has played out of position his entire career. He should be a LG, but has played RT and now LT. At times, he's played well, at other time's he's struggled. It remains to be seen whether he will be able to provide high quality play at LT this season, an important position with a true frosh QB. But I don't know that his lack of turning into a star performer is due to poor coaching vs. him playing out of position.
I pull for Robinson as a local kid, and I think it was a great story when he won a starting job early. He's another guy that battled injuries, and I'm not sure that he is quite as good as a contingent of posters hoped. He can obviously erase that with a big senior year.
Point being? Four key performers who have been multi-year starters, but I tend to believe that many fans over-estimated the potential of those players, particularly the latter two. Which in turn leads them to express frustration that the coaching staff didn't help them achieve those unrealistic expectations.
Let's be honest--Burton was a huge [figuratively and literally] project, and an example of the staff trying to catch lightning in a bottle. Will he ever crack the two deep? Unlikely, but his career's still being written. But if he doesn't emerge it hardly is an indictment of coaching.
Let's be honest II: McGloster was a super late add to his class, a total project with athletic upside. Even though he hasn't truly contended for a starting spot, the fact that he's gone from basketball player who dabbled in football to a guy on a P5 two deep actually reflects well upon the coaching. This guy was super raw.
Lasker is a bit of a puzzle. Looked fairly solid as a soph, sucked as a junior, and hasn't gotten much PT as a senior. He was a guy who showed a lot of promise early, but seemed to regress.
Emerich is a career backup, who has stepped up and been solid whenever his number has been called [primarily due to injury]. Not sure that he's starting caliber long-term, but he's a solid rotation guy.
Hayes and Roberts are young players who could both end up being multi-year starters.
Ward is a redshirt frosh who came in overweight, too weak, and too slow. Not sure how that can be pinned on his position coach. He's in his first year of eligbility, and has plenty of time to turn it around. And if he doesn't, we've got plenty of your talent who will leapfrog him on the depth chart.
Speaking of whom, I'll leave out the RF frosh for now, since they likely won't see the field [Conway obviously might].
In general, the current coaching staff didn't inherit a great group at OL. We had some quality [Mackey, Trudo, Hickey, Palmer], but lacked depth to a worrisome degree, and the bottom dropped out last year with the extensive injuries we suffered at OL. Several of the principals not only got hurt, but also weren't quite as good as a portion of the fanbase believes. I don't think you can put that all on the coaching staff--I think some of it came down to the capabilities of the players, and bad luck with injuries.
This year, the execution seems better, the depth is improved, and the penalties are way down. But I still think the group has limited upside [with "average" being the top potential], primarily due to several guys playing out of position and not having a natural LT on the squad with experience.
We've replenished the coffers at OL in the last two classes. And while it stinks to lose Trudo, I have a feeling that the players who ascend to replace the rest will prove to be better than the guys they'll be replacing. Just my opinion, but I think Adam has done a reasonable job under the circumstances, I'm encouraged with who we've recruited at OL, and I expect better performance in upcoming seasons from the OL as a function of better talent / depth.