I just rechecked. Other than the last set, Nadal and Verdasco were almost even on return point win %. Unsurprisingly Verdasco won more on the 1st and 4th, while Nadal won more on the 2nd and 3rd sets. I'm not sure your memory of the match is accurate.
The Rome stadium court is notoriously smaller than other clay center courts (and even Pietrangeli in the same Foro Italico facilities), which hampers back fence defense.
That's a pretty weird take on a match where Verdasco won the first set and 3 sets went to a tiebreak.
Even if what you said may be right in hindsight, it didn't feel like that at the moment. Verdasco had already beaten Murray (who was considered a top contender for the title after his late 2008...