I think that we will be very unhappy next year if Lowe is at best the #4 emergency OT we can get. The good news is that Lowe is signed and is camp insurance against injury and against the possibility that the other 4 OT's are truly unacceptable.
I expect us to sign 2 free agent OT's (a top starting LT and a swing OT), and to draft one LT. That would give us Wallace and 3 new arrivals.
Obviously, we would also need a couple of OT's on the Practice Squad, perhaps including Lowe, Jacobs and someone we claim before Game 1.
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LOWE EVALUATION (what this season is for)
The team has had a stable OL for most of the season. Lowe has been given the chance to show that he has a future in the NFL. At best, he is a bottom of the roster player or a Practice Squad player.
JACOBS EVALUATION (what this season is for)
He isn't ready for anything but a possible #4 OT position, which is fine. Let him compete in camp, and if he doesn't quite make it, he is an OK Practice Squad option, IMO better than Lowe.