Rookie seasons are serious business.
Over the last 5 years, i believe only 3 players have hit double digit sacks their rookie season: Brian Orakpo, Von Miller, Aldon Smith. So mostly special players. Think Houston regrets drafting JJ Watt just because he "struggled" as a rookie? How about the Rams and Robert Quinn? How about other positions, Patrick Peterson struggled at corner as a rookie, should the Cardinals have passed on him with the 5th overall pick?
If Ireland is shown the door next offseason, its because he didnt do his job correctly in previous years and we were forced to start rookies right away to try and cover for the lack of talent on this roster.