Who makes the single greatest impact on this year's team?

[grampahol]

I'll wait for the season to get going. For all we know there may still be an undrafted player lurking under the media's radar.. Until the pads go on and they're playing against other teams in real football it's just speculation and guessing. Every season around this point in the season the well known names usually get the press. The undrafted nobodies are barely mentioned.