Not really. If you actually look and don't listen to the media, April had a middle of the road coverage team, which gave up no TD's in 2003. See:
http://nfl.com/stats/teamsort/NFL/OFF-RETU...ar?sort_col_1=3
The media used him as a whipping boy, and it was more Martz who would not let him use any 1st stringers on any coverages. So considering he used on 2nd stringers he did pretty damn good.
In addition his kicking was tops in the NFL.
http://nfl.com/stats/teamsort/NFL/OFF-FIEL...LS/2003/regular
Again, media hype sucks and reality is different then facts.
Mcnally on the other hand in 2003 was the line coach for one of the worst rushing teams in the NFL.
http://nfl.com/stats/teamsort/NFL/OFF-FIEL...LS/2003/regular
He also had close to giving up the most sacks of any team.
Yet last year, Barber seemed to get hit less, doesn't fumble nearly a much, and even with a rookie immobile QB, they give up 10 less sacks.