Keep in mind surrounding talent. I'd trade Floyd to get Fowler back. Floyd's playing with the most disruptive DT in the game and has only one sack and few pressures.
Well, comparing apples to apples,
Fowler thru 2 games last year playing with AD had 2 sacks, 3 tackle for loss and 3 QB Hits
Floyd thru 2 games this year playing with AD has 1 sack, 1 tackle for loss and 2 QB Hits
Not seeing a huge disparity with such a small sample.
Of note, Fowler did not record another sack from game 2 until game 7, and in that timeframe had only 2 tackle for loss and zero QB hits.
This could look a lot more favorable towards Floyd in a couple games