9 would be ideal but you can get by with 7. 3- OGs, 3- OTs and 1- C. Still as an emergency back up to Conyers is not bad. Bell is going to possibly be number 2 Center. After Tunsil comes back, Rawlings can back up Cooper at RT and Cooper still back up LT at LT. Then Bell, Patterson, Morris and Sims at OG. Redshirt Taylor. IMHO
