04:30 PM ET 01.28 | For the second time in two seasons, veteran point guard Mike James has gone from playing in the D-League to finishing out the season in the NBA. The Dallas Mavericks fully guaranteed James' contract for the remainder of the 2012-13 season on Monday, following the completion of his second 10-day contract with the team. James, 37, has appeared in 10 games with Dallas, averaging 2.6 points per game. While his individual statistics aren't impressive, the Mavericks have outscored opponents by 30 points with him on the court, which explains why coach Rick Carlisle decided to hang onto the guard. The situation is lke last year, when the Chicago Bulls guaranteed James' contract for the rest of the season in April after a series of 10-day contracts with the team.