In the earlier post on understanding BOB protection (here) the focus was on 4 man (even) front defenses. Now the focus will shift to 3 man (odd) front defenses. As previously discussed the offensive line in a BOB protection vs. an even front must declare a "Mike" and account for the 4 down linemen and the "Mike" in protection. Similarly, versus an odd front defense the offensive line must account for the 3 down linemen and 2 linebackers. Which 2 LBs the offensive line is responsible for depends on the offensive philosophy. The 2 linebackers can be the 2 inside, 1 inside & 1 outside, or both outside.