It's because there are differing opinions about exactly what the problem is. Lots of people think recruits coming in with mostly low awareness is fine, for example, but they should have the ability to progress to a decent rating and they don't. If their awareness is in the 40-50 range, it will never exceed 65 or so.
These are the known problem areas, though there are probably more:
- Awareness is too low and/or doesn't progress enough for almost all positions.
- Elusiveness, spin, and juke ratings are too low for wide receivers.
- Kick power and accuracy are too low for kickers.
- Overall ratings are down for all positions, though fixing the above three items might help enough to fix that.
I would argue that #2 and #3 are both about the incoming recruits being rated too low. Those aren't stats that need to progress a ton throughout a player's career, they just need to be higher than absolutely terrible to begin with. #1 could be a problem with both the new recruits AND the progression, or you could make a case for just one or the other. #4 is really the great unknown, because lots of small variables come into play. If fixing 1-3 doesn't fix #4, then EA needs to do tweaking in other skill stats, and that could mean bumping up new recruit ratings or making them progress a little more. I'm not opposed to a combined solution - I see logic in most of the arguments I've read. But the trick is implementing it so that they hit a very small sweet spot, and don't over-correct and go back to the old rosters full of 15 A+ teams.