This Season May Be Last Chance For Trevor Penning To Prove His Worth For New Orleans Saints
That clip of 1 v 1 pass rush is him oversetting and not having his balance/weight on his inside leg and adjusting too late to the rusher. It isn't good though 1 v 1 pass rush is a drill which favours the DL.
I think all of his issues are fundamentally correctable to the point you can get really solid tackle play out of him. But he's got to correct the issues, there has to be improvement. One clip or anecdotal practice notes don't tell the whole story but it's not painting a positive picture. But he'll need to improve, and quickly. If he doesn't, he'll be replaced. I trust that whoever starts at RT for game 1 will be the best choice of the options we have available to us.