Consider two things.
1. There were many people who projected him as an all-world physical specimen and a player who dramatically underperformed those expectations. That is playing out now.
2. He has shown enough to earn playing time as a mid-round pick, and many of those draft picks do not even merit playing time. So, while his performances may have been lackluster so far or limited to space-eating roles that grab no glory, it doesn't mean he is a failure. Just may indicate that he was what the scouts thought he was ... a guy with impressive attributes who is a role player.
No harm in that. And who knows, he's still young and has some upside .... he may yet bloom.
I was never a fan of the pick, took a lot of heat for my opinion, and some people may find it odd that I'm sounding optimistic. But, he's a Dolphin, and I call 'em like I see 'em, and despite my analysis, I always hope for the best. He does have potential, so hopefully he can translate that into production down the road.