thats exactly the thinking that has occured over the last 5-6 years, once we get to second round there will be another good player there, and then you'll say, "we should take him, we can get another lineman in the 3rd round" and so on. Pretty soon you end up taking mike puccilo in the 6th rd and then your like oh sh.... we have no lineman.
we need lineman, so take one, its as simple as that. there will always be good players available, so dont wait for the time where this isnt.