"They're a good complement to each other, and we like Miller's speed and explosiveness," one Dolphins staffer told Jackson. "Miller has the higher ceiling, but you wish he ran with a more physical (style). And both have to improve as blockers."
The comment on Miller's physicality is interesting -- especially considering that was the team's feeling when letting Reggie Bush walk last offseason.
Miller clearly is the better back, but he had huge boom-or-bust performances last season (putting up three games in which he had fewer than one yard per carry). He finished with 709 rushing yards on 177 carries.
In Pro Football Focus' elusive rating (in which the website ranks a runner's success beyond the point of a blocker's aid), Miller was ranked 27 out of 32 running backs who took 50 percent or more of a team's carries.
"He has the potential to be a weakside linebacker starter and can be a starter when you open in a nickel package," a Dolphins official said. "Finding a good cover linebacker is easier said than done, and he can do that."
However, we'd point out that Wheeler's base contract is guaranteed for 2014 and would count more than $10 million in dead money. Those numbers nearly guarantee Wheeler will be on the roster in 2014.
If a player like Jenkins progresses, Wheeler's job could be in jeopardy in 2015.