From the insider article today:
The Toronto Raptors trade PG Jose Calderon to the Utah Jazz for PG Devin Harris and a future pick
Why the teams should make this trade: Calderon has had a nice seven-year career with the Raptors, but at age 30, he might not be in the team's future. Head coach Dwane Casey is all about defense, and Harris would provide an upgrade over Calderon.
On the other hand, Calderon (13.6 ppg, 10.2 apg in the past 10 games) would be tremendous running the Utah offense with big men Al Jefferson and Paul Millsap. He is one of the best assist-to-turnover ratio point guards in the NBA, whereas Harris has proved to be a bad fit for the Jazz, averaging just 9.1 ppg and 4.5 apg, the lowest numbers he has had since his early days in Dallas.