How good are PHI's DTs?

ok well i live right outside of philly, and i watch every eagles game, so heres what i think...The Birds could definitely improve on the starting 2, which i think they did with laws, as for talent these guys have it. I don't think they have preformed to their full potential so i would say they were just average as of right now. I think with the addition of laws we will be much better cause these guys have a solid backup right now which means they can have longer to recover from the earlier drive, and they can come out if they get tired.