I have been kind of counting Clark out, but I could see him being the weakside linebacker on early downs, with Kendricks in the middle and Parsons at strongside, then giving way to Overshown (depending on his development on passing downs), with Bell being the other passing down linebacker.
My concern for all of them is what we'll have in front of them. I like Odighizuwa, and would be really happy if he was part of a rotation at 3-tech with the type of stud we need at the position (and aren't going to get). But the jury is still way out on Mazi. If he's constantly on skis, the linebackers will have a hard time dodging offensive linemen.