Why can't spurs get a new good person like in free agents?

Spurs don't have that much good people if they had 1 more good person like lebron James or any good player when he would be a free agent

Why can't spurs get a new good person like in free agents?nba spurs

yeah i don't think they really need LeBron i think that they don't need anybody else they already are playing good basketball. and This is the team that is going to win the Finals this year.!

Why can't spurs get a new good person like in free agents?basketball ,nba teams

THEY THINK THEIR TEAM IS AS FRESH AS IT USE TO BE BUT YOU CAN TELL ITS NOT AND LEBRON AS AN EXAMPLE NO THEN THEY MIGHT ALL LOSE THEIR JOB.
salary cap issues.

duncan, parker, and ginobili don't come cheap.
dont know why.and dont why they got those freakn morons elson and oberto.they r useless and dont help in rebounding or points.they are my boys but im surprised they are winning with them when they are no help whatsoever.they shouldve kept mohamed.he didnt score much but was a good defender.they need to get rid of them losers.