So last year, we played Lemon at Tackle and moved McKinney to Guard for a few games when Antonio Johnson was out recovering from surgery. If we go with that lineup, we have the entire line back.
However, it appears Lemon is going to play Guard again this year according to this Vito article, and I don't think they're going to put McKinney at Tackle... So we will be breaking in a new O-lineman this year at Right Tackle (Rentfro?).
Still, overall, this is going to be a very, very good unit with the potential to put 3 players on the 1st team all-conference team.