The new Seattle Seahawks running back was listed at 235 pounds last season, but one report from the Milwaukee Journal Sentinel's Bob McGinn on Tuesday stated Lacy weighed in at 267 pounds during one of his visits this offseason.
Carroll added that 235 pounds for a player of Lacy's build is not realistic, and would like to see the 26-year-old closer to the 240-pound range.
"(He's a) big back in classic fashion. He's an exciting guy to add to the mix," Carroll said, per the team's official website.
Lacy agreed to terms on a one-year, $5.55 million deal with $3 million guaranteed in Seattle on Tuesday. During his interview, Carroll alluded to the fact that Lacy has future money at stake after signing what amounts to a "prove-it" deal.
After pounding his way to back-to-back 1,000-plus yard seasons to open his career with the Green Bay Packers, Lacy's conditioning has been a topic of conversation the past two years as his play tailed off. In the 2016 offseason, he famously worked out with trainer Tony Horton to get in shape, but injury wiped out all but five games last season.