] Callie Caplan leads her SportsDay Insiders -Kevin Sherrington, David Moore and Evan Grant -- in a discussion of the Mavs' biggest win of the season. Kevin eats a little crow over the contributions of Spencer Dinwiddie, acquired in the Kristaps Porzingis trade, and makes Jason Kidd a Coach of the Year candidate.  [12:25] The panel reveals its favorite and least-favorite coaches to interview. Hint: Buck Showalter may not want to listen. [25:21] David outlines the Cowboys' week at the combine and we poll the panel on the free agents we expect to return or be let go. Hint: Amari Cooper may not want to listen.