Derrick Rose has had injury woes for as long as anyone can remember but the Cavs signed him for an affordable 2.1 million dollars. That is an extreme bargain even for a injury-prone Rose, when healthy he is definitely a legit starter in the NBA. If it doesn’t work out, the Cavs still have Kyrie Irving or likely a suitable replacement if the Irving gets the trade he wants so badly. Rose wouldn't have to do any heavy lifting, he can play lite minutes during the year because the team has the talent to hold fort. He also passed his physical, so as of right now he is fresh and ready to go.
The Cavs can handle the regular season, they need Rose’s scoring in the Finals against likely the Warrior offense. If Rose can make it to the Finals in one piece(big if) he could really give the Cavs a boost on offense, again he wouldn’t have to score a lot but simply be a spark/extra option the team lacked this past Finals. But if he can manage to give them just two throwback MVP Derrick Rose performances, LeBron and company could likely take it from there. This could be a sleeper move that could pay off in a big way, also he did average 18 points and 4 assists last season.
1) LeBron Effect:
It sounds cliche but the former MVP can elevate the games of the people around him. LeBron could give Rose the boost that he has needed for a while, he will be playing with someone that can get him easy baskets. This is very different from the situation he had in New York with Carmelo. Making the game easier will do wonders for his confidence and the wear/tear on his body. LeBron and the Cavs in the Eastern Conference (even without Kyrie) would likely still have a dominant season. Rose will be able to sit out a lot of fourth quarters because of blowout wins and rest throughout the year without it affecting the team.