DeVante Parker, Jordan Phillips highlight Miami Dolphins' 2015 draft class

A foot injury has put a damper on the season of first-round receiver DeVante Parker. Mike Ehrmann/Getty Images

The Miami Dolphins had seven selections in the 2015 draft. Here's a closer look at how their picks have contributed:

2015 draft class:

Starters: Guard Jamil Douglas (4 starts). Undrafted rookie punter Matt Darr and undrafted rookie kicker Andrew Franks also have been major contributors on special teams.

On the cusp: Health permitting, first-round pick DeVante Parker has the potential to make an impact in the second half of the season. Coaches and teammates rave about Parker's physical abilities. He was a star in organized team activities and minicamps and continues to flash in practice. But summer foot surgery was a setback Parker is still dealing with. He has just four receptions for 49 yards this season. Second-round pick Jordan Phillips also shows flashes and has two sacks as a backup defensive tackle.

Undrafted free agents they like: The Dolphins hit gold in the kicking department. The team saved money on its salary cap by cutting veteran punter Brandon Fields and kicker Caleb Sturgis and going with a pair of undrafted rookies in Darr and Franks. Both have been solid, and Miami’s kicking games haven’t missed a beat.

My take on class: The Dolphins are not getting the immediate impact they hoped for from their rookie class. Most of their first-year players appear to be long-term projects after eight games. The 2014 class had big rookie contributions from receiver Jarvis Landry and offensive tackle Ja'Wuan James, but there are no such players among this year's draftees. It's too early to completely write off this group. But for now, the Dolphins’ rookie class does not make the grade. Grade: D+

Mel Kiper’s take on class: It's barely a glimpse so far, but Ajayi has some serious juice and can be productive if he gets touches. Getting him in Round 5 is one of those moments where I ask why anyone drafts a running back in Round 1. There's just not a huge drop-off. Phillips was a smart high-reward play and has talent if he can be consistent. We've seen flashes. DeVante Parker is a major talent, we just haven't seen enough of him to prove it. He needs to stay healthy for that bet to pay off.