I really don't much about this aspect of the NFL, so I did just a little bit of research and found a couple of interesting articles wriiten by the same guy.

Good NFL scouts work like dogs and are probably the most under paid professionals in the NFL food chain. In addition, there will always be growing pains with new and young scouts as they replace older and higher paid scouts. Therefore, why not train a scout for 2 or 3 years before you let him start contributing to the evaluation of players? Expenses may go up for the R&D department but inefficiencies may decrease. I’m not saying more scouts are the answer but I am saying more resources are needed for an effective evaluation system. One problem brought to my attention by one scouting director is that area scouts become underappreciated by most team presidents as they are “out of sight and out of mind because they don’t work in the team building”...Link

Here's another: Some of the more successful scouting operations I’ve seen have been teams that keep small staffs; their top execs spend considerable time on campuses and in the film room. In addition, they communicate often with their scouts and make them as important a part of the process as they are. The staffs that communicate openly and frequently respect each other’s opinions will win the R&D battle in late April...Link to Article