I would have put more into the line as well, but you have to consider that there are two ways you can help a young, franchise QB. One of those ways is to give him a great offensive line that will protect him. Second, you can give him weapons to throw the ball to. The Lions chose the second route, and it's not necessarily a bad route. If Schwartz runs an offense anything similar to what Fisher/Heimerdinger run in Nashville, he will make use of the tight ends a lot. Bo Scaife - the Titans' #2 TE last year - had the most receptions on the team - 58. The Titan offense values a pass catching TE perhaps more than a wide receiver (hence their reluctance to pour large amounts of money/resources into WRs) and that has to be why Schwartz valued Pettigrew so highly. Keep in mind as well, Pettigrew was the only TE in the draft who is a good blocker and receiver. No other TE in the draft had that mix. He won't block as well as an offensive lineman, obviously, but he's a very good blocker and will help at times with protection, along with the benefit he'll bring in the receiving game. I would have gone with Oher, but it's a very defensible move to go with Pettigrew. A position is only a luxury position if it is not involved in a team's game plan much. This is probably a sign that it will be for Schwartz (like it is for his mentor, Jeff Fisher).