The Bottom Line:
1 - Mankins won't start this Sunday. Why? Because first and foremost he isn't ready to start. He hasn't played a down of football in many months.
2 - A poster said "Mankins is as good as his word". Bingo! Mankins reports, sits down with BB and says "That was the business side but now I am here to play football. I am here to be part of the team and help the team win. The business side is no longer relevant until the end of the season". If that is his attitude, things with Mankins are probably just fine for this season.
3 - As long as BB hears point 2 and believes Mankins' word, BB will use Mankins in every way possible if it is a benefit to the team.
4 - In the coming days/weeks, if you see Mankins in there playing (and playing a lot), you will know that 2 and 3 happened. If you see Mankins sent to the end of the bench (literally or figuratively), you will know 2 and 3 did not happen.
5 - I will be surprised if Mankins doesn't do point 2 in some form or fashion. If he doesn't then I have the wrong impression of Mankins. The business side and the way of the agent, I believe, made a foolish Mankins take the wrong tact. I believe deep down (IMHO) he always wanted to be out on the field helping the Patriots.