I was beating the same drum for a little while, but the more I think about it, I really miss having a running game and effective play action. Everyone likes to say this is a passing league now, and it is for sure, but a running game is still important and it improves the passing game by keeping the defense honest. It may not improve point production as well as a good WR/TE would but it comes with other benefits like extending drives, making the QB more comfortable, making the QB less subject to potential injury, reducing the number of situations with high turnover potential, and balancing your offense so you can punish teams that have bad run defenses.
Now I'm not going to go as far as to say we should reach for o-line if it's not there, but I won't be upset if we end up with Martin or trade back and grab a guard.