It's reassuring that we're finally getting to the point where our OL can actually sit for 3 years before they're expected to play.
The quick reaction is to think about a guy like Crane and say he's a bust because we haven't seen much of him yet. In reality, he's been playing behind upper-classmen (Criste, Tanigawa, Charles, Tafunga), which is supposed to happen.
Ideally, you want your OL careers to go like this:
Freshman - RS
RS Frosh - ride bench, special teams, play when up by 40
RS Soph - backup for starters, start if there are injuries
RS Jr - start
RS Sr - Start
The only position where we're not there is Right tackle, which speaks to Sark's absolute incompetence in bringing in Tackle prospects. Ironically, it's also the position that looks most promising down the road (McGary, Adams)
Those guys aren't very good. Crane does have time, but if Crane gets passed by Sosobee and/or Turner, he's a bust.

