No one could imagine the Dallas Mavericks entering this season without a point guard who didn't know the ins and outs of coach Rick Carlisle's system. That's why when Delonte West agreed to a one-year contract with the Mavs on Tuesday, it should not have been a surprise. The Mavs still had the veteran's minimum of $1.3 million and the $2.5 million "room exception'' available to give to West. A source said they agreed on a contract somewhere in the middle of those two numbers.