With Kaczur, Levoir, and Vollmer wrapped up for several years I don't see Offensive Tackle as a high priority.
Neal and Mankins are still free agents, If Mankins leaves that would leave a gaping hole at LG. A stud OG or smaller athletic OT to take over the left guard spot could be a serious need.
I think the most serious need now is going to be a DEFENSIVE Tackle. A kid like V. Oghobaase to come in and take Seymours spot at 3-4 DE.
Taxed