I am glad we signed 5 guys and hope we sign 4 next year. It's very important to get Lineman (both ol and dl) in the program early and develop them. Get them stronger & bigger & quicker. Let them mature. Especially o-line as it takes a bit to learn those spots and it's harder to project them. I think it's much easier to find skill players for making an immediate impact at their respective positions because for the most part speed&quickness is easy to spot and it's easier to evaluate and bring those guys in.
I think as far as developing good players. I think you can develop lineman, TE, FB's and LB's the easiest. Probably because it takes longer to mature the bigger guys. I think it's harder to develop the skill positions.