OTC has a value of around $10M. I will admit, I have no idea how close it is to his true value on the open market, but if he walks, you get a compensatory pick, and a new starter will be needed at DT.
Side note: As good as he's been our rush defense is still near the bottom. In other words, he hasn't helped our run defense as much as we'd like.
Honestly, I'm on the fence ...it's hard to build a team when you are letting solid drafted players walk but on the other side, he's just one piece of the puzzle. Tough call
https://overthecap.com/player/osa-odighizuwa/9539