Packers RB Johnathan Franklin hasn't shown any "wow" factor yet. He has been adequate, not special, as a pass blocker. He's tough and quick, but has struggled making headway between the tackles partially due to size.
The assumption is that Franklin, as a fourth-round pick, has the team made. But Lacy figures to get most of the carries, Harris pass-protected almost as well as he rushed in 2012 and Starks has enjoyed an injury-free, competitive camp.
It sounds as if Lacy has distanced himself for Franklin, though Harris is still in the mix given Mike McCarthy's recent comments. We'd feel comfortable drafting Lacy in the 5th round of 12-team drafts. Franklin may not even be his handcuff at this point. Harris appears to have that honor.