Attacking doesn't mean blitzing. You remember a guy named Cosgrove? He was what you would like, a blitzing machine. It looks good for a while until the other team guesses or figures it out and you are burned big time. Where do you think all the big plays came from last year? More is not always better.
I remember Cosgrove blitzing the hell out of Texas one year down in Austin and it worked...for about 3 quarters and then Texas took advantage in the 4th..