We know that Philbin and Sherman like the Green Bay way of developing rookies slowly. Where Parcells would throw them in the rookie year, the Packer approach has been more successful, longer term. Hooshoops is probably right that players like Dallas Thomas, Mike Gillislee and Will Davis need to be showing something in training camp. Davis needs to get physically bigger and stronger but his aptitude and confidence in making interceptions is pretty exciting. He could be very good or a complete bust if he hasn't built physical strength.
With the glaring O-line holes, it is significant that Dallas Thomas was not given any opportunity. Even undrafted Brenner got decent playing time ahead of him. The clock is ticking and Dallas is on thin ice. If he is as bad as many think, he brings into question the whole competence of the Scouts, the evaluation criteria, etc. He was a 3rd round draft pick.
I have some serious Gator friends who were surprisingly ambivalent about Gillislee. Some of his touchdowns as a Gator look good when making the needed yardage. However, he's up against better, bigger stronger Defenses in the NFL and I don't know that he's all that good. We have seen little to date but I hope I'm wrong.
Jamar Taylor needs to be shining in Training Camp too. He had injury issues that put him behind from the start. His college tape at Boise State was good.