DAVIE, Fla. -- The Miami Dolphins hit a home run on the first day of the NFL draft. Everything made sense with the selection of Louisville wide receiver DeVante Parker. He is a dynamic player who filled Miami's biggest need.

But the Dolphins followed that with a risky pick on Day 2. The selection of Oklahoma defensive tackle Jordan Phillips was questionable on many fronts. It was the Dolphins' only selection Friday, but they did make a trade. They moved down five spots in the second round and shipped their sixth-round pick to the Philadelphia Eagles for the Eagles' second-rounder and two fifth-round picks.

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Let's start with this: Miami had 114 million reasons not to use a second-round pick on a defensive tackle. The Dolphins invested $114 million in free agency on Pro Bowl defensive tackle Ndamukong Suh. That made the position no longer a need.

Phillips, at best, is a backup next season behind Suh and fellow starter Earl Mitchell. The Dolphins also had promising young reserves Anthony Johnson and A.J. Francis. Phillips will be added into a jumbled mix.

In addition, Phillips comes to the Dolphins with a reputation for underachieving in college and having an inconsistent motor.

Here are some reporting notes on Phillips, according to Scouts Inc.:

"Completely unreliable. Can't trust him."

"Effort is up-and-down."

"Inconsistent effort as a pass-rusher. ... Will hang out at line of scrimmage and give half-hearted effort for a pass breakup."

"Keeping weight in check will always be a concern."

Does this sound like a player the Dolphins should count on in the second round?

"You know, that came up a lot," Phillips said of the pre-draft critiques. "I think that was just the system I was in. You will see a lot more plays out of me, coming up soon."

Granted, Jordan is young and can grow out of bad habits with proper coaching. But the Dolphins are entering an important 2015 season for many in the organization and need young players they can immediately trust. On top of that, Phillips didn't fill a need.

Miami entered Friday with various holes. The Dolphins needed a middle linebacker, one or two guards and depth at safety. They exited Day 2 without addressing any of those positions.

General manager Dennis Hickey made a case Friday night that the Phillips pick added depth, and that the team simply took the best player on the board. Phillips might eventually prove Hickey correct. But Miami is a .500 team from 2014 and was in need of an immediate impact in the second round at other positions to get over the hump. In that regard, the Dolphins came up short.