The Green Bay Packers let Eddie Lacy depart in free agency, and so far haven't signed anyone to replace him. That could be because they believe they already have a viable replacement on the roster in Ty Montgomery.

The former wide receiver converted to running back after Lacy got hurt last season and performed very well in the role, even if he doesn't necessarily look like a prototypical workhorse runner.

Speaking to reporters at the NFL's annual meeting this week, Packers head coach Mike McCarthy expressed optimism about Montgomery's ability to lead the team's rushing attack.

"I think Ty definitely has that ability," McCarthy said, according to ESPN's Rob Demovsky.

Montgomery averaged 5.9 yards per carry last season, but handled only 77 carries and battled injuries. His durability remains a major question mark.

"Obviously it’s a very heavy lifting position, so availability will be Ty’s No. 1 statistic," McCarthy added.

The Packers did re-sign Christine Michael in free agency, and for now he'll slot in behind Montgomery on the depth chart. It's also highly likely the team will draft a running back - or two.