That's true. But, remember that Malik was a 5th round pick. It's not necessary to find a pass-rushing DL only in the first 10 picks, those guys are simply more developed. However, DL take a year or two to develop anyway, so whoever they get is unlikely to have a huge impact in their rookie year.
Denver could have kept Malik (he said publicly later), but refused to renegotiate him until he hit FA and then he got a huge offer of $15m from Jacksonville.