Our OL is bad. Every one knows that but I hear that Costa is going to be the starter this week. Pro football focus graded out Costa as the 27th best center out of 32 last year. Right now Cook is graded out at 13th in the NFL right now. So replacing Cook with Costa will not make us better. Now if Cook was going to replace Mack B who is graded out at 68 which means there are better backups on some teams, but as of now thats not the plan. Am I missing something here? For those wondering about Living he graded out at 24 right now.