DAVIE, Fla. -- A few quick thoughts on the Miami Dolphins' fifth-round draft pick:

The pick: Jay Ajayi, running back, Boise State.

My take: This could be the sleeper pick of Miami's draft. Ajayi had strong production in college and prototypical size for an NFL tailback. However, a long list of injuries dropped his stock into the fifth round. Still, this is a good value pick for Miami, which hopes Ajayi can stay healthy at the next level.

Thin at running back: Miami needs help and depth at running back. Starter Lamar Miller rushed for more than 1,000 yards last season, but the team allowed veteran Knowshon Moreno to leave in free agency.