Speaking to the media Friday, James said he is hopeful that Thomas is able to find his game as a member of the Los Angeles Lakers, according to ESPN.com: "I want Isaiah to get his bounce back, get his spring back, get healthy. You know, being out seven months is difficult for anybody. I just felt like he was playing behind the 8-ball. ... I wish the best for him. In L.A. right now and his future, I want him to get that bounce back, get that spring back."
In 15 games since returning from a hip injury suffered during last season's playoffs, Thomas is averaging just 14.7 points and 4.5 assists.
Thomas was an All-Star in both 2015-16 and 2016-17 with the Boston Celtics.
LeBron also mentioned how thrilled he is that Wade was given the chance to return to the Miami Heat:
"Me and D-Wade? It ain't tough. I see him all the time. I'm happy as hell for D-Wade. He gets to go back home. That's how it should be. I've always felt that's where his heart and his mind was. I think it's going to be great for him. It wasn't tough. We're both 15 years in the league. We know how the business is. But more important, we know we see each other all the time anyway, so, 'get out of here, D-Wade.'"
Wade was sent to Miami for a protected second-round draft pick, while the Cavs traded Thomas, Channing Frye and a first-round draft pick to L.A. for guard Jordan Clarkson and forward Larry Nance Jr.
D-Wade signed with the Chicago Bulls prior to the 2016-17 season after spending the first 13 years of his career in Miami.
With the Heat, Wade was named an All-Star 12 times and won three NBA championships.
This season, he is averaging a career-low 11.2 points per game primarily as a bench player.
Cleveland also completed a three-team trade Wednesday that sent Jae Crowder and Derrick Rose to the Utah Jazz, and Iman Shumpert to the Sacramento Kings. In return, the Cavaliers received guard Rodney Hood from Utah and guard George Hill from Sacramento.
The Cavs significantly altered their roster, leaving only a handful of core players in place, including Tristan Thompson, JR Smith and the injured Kevin Love.
Overall, James felt the team made some quality moves and added pieces that could help in its pursuit of a fourth consecutive NBA Finals appearance: "I think we became a younger team, more athletic. We added some more shooting as well. So, we'll have to see how it meshes. I like the pieces that we have coming in."
Cleveland is coming off a 140-138 overtime win over the Minnesota Timberwolves on Wednesday, but it is just 5-9 over its past 14 games.
With a record of 31-22, the Cavs are third in the Eastern Conference and trail the first-place Celtics by 7.5 games.
The Cavaliers will have a chance to test out their new-look roster Friday night when they travel to Atlanta to take on the Hawks.