The Cowboys need a backup center after they cut center/guard Cory Procter on Monday.
The interesting thing about Koiser is that he's never played center in the pros or college. He's played every position on the line but center.
"You really need a center/guard type if you take them to the game," coach Wade Phillips said. "Kosier could play the backup center and Montrae can go to the game, which he wasn't able to do before. It gives us a little stronger in that area as far as who we take to the game and so forth."
Phillips said Holland playing center wasn't a good fit for the club. Travis Bright will also get some looks at backup center.