Arkin, 6-5, 310 pounds, even started the first preseason game against Denver.
Following that game the Cowboys went with Bill Nagy, their seventh rounder, at left guard, and Arkin slowly dropped from the radar. He has been inactive for every game and even with Nagy out for the year with an ankle injury he is not a lock to be active this week vs. St. Louis.
Undrafted rookie Kevin Kowalski has been active because he can play center and guard and replaced Nagy Sunday. On Tuesday the Cowboys signed veterans Montrae Holland and Daniel Loper and it is possible Holland could start against the Rams.
So what has happened to Arkin?
“He is someone who did some good things early on,” coach Jason Garrett said. “As we got going he leveled off a little bit. He is a young guy who is working hard to do things well. He is from a small school. I think the biggest thing for him is he didn’t have an offseason. He comes to training camp. It’s a big leap for all the young guys. And particularly if you’re coming from a small school it’s that much more difficult.
We do think he has the right stuff physically and mentally as he goes forward. He is certainly in a developmental mode right now. We feel some of the guys are a little further along in their ability to play for now.”