Really easy... This is from NFL PR guy Greg Aiello. As of last night 147 drafted players had signed, compare that to the past six years of players who had signed by May:
2010 - 13, 2009 - 11, 2008 - 7, 2007 - 25, 2006 - 2, 2005 - 4
Like I said said before, this CBA was not very good for rookies, but it has made this process very easy for everyone else.