Insects... I'd gladly trade you Dunn and his 1400 salary for the "burden" of Portis and his 1000+ salary for the next 5 years!
Actually, I'm not in favor of changing the rookie salaries... especially since I've traded away both of my first two picks for next season (precisely because I didn't see the value in keeping them vs. acquiring a vet through RFA or UFA). However, I'd echo the fact that WR salaries are too high.
The problem with changing things is that strategies have already been formulated by many of us owners re: who we're keeping this year, how long their contracts are, etc.
I'd say, keep it the way it is (with the possible exception of tweaking down the WRs... but I'm not willing to die for this!).
Maybe next year, after having lived with a season of new salary scaled rookies, we'll have a better idea of what's fair and reasonable.