Atkins was Boston's best player last season
He would be a good fit for the Cavaliers at backup PG. The only issue is his contract. I wouldn't have any problem with this deal if the Cavs could get rid of Kevin Ollie somehow.
The Cavs would still need to find a young point guard eventually. But Atkins is a scrappy player who can shoot outside and push the ball. He's a whole lot better than Ollie.