Lakers fans have seen the result this past season of what a team under Brown's coaching has done. While Mike Brown is not the only reason for the team's shortcomings this season, he was never the right choice from the start, with many fans and players themselves supporting other candidates (like Brian Shaw for example). The Lakers need to start over and one way to do that is with a competent coach that fits with the Lakers. Mike Brown isn't that guy.
To be a successful coach, a candidate has to have the respect of his players. Mike Brown didn't have it in Cleveland (with LeBron James) nor does he have it with some Lakers players (as evidenced by various sideline flareups and players questioning his decisions in interviews). Similarly, a coach should be experienced at winning and make smart basketball decisions during games. While he was Coach of the Year with Cleveland, the Cavs are no Lakers team. Mike Brown has made many head-scratching moves during games both with plays and substitutions that left Lakers fans wondering. While there will never be another Phil Jackson, the Lakers need a more experienced and well-respected coach with a winning pedigree. Mike Brown is not that coach. As he himself said, “I’m a glorified equipment guy who gets to chest bump and high-five the players.” (Spears, Marc J.. "Life after LeBron: Brown eyes return - NBA - Yahoo! Sports". Sports.yahoo.com.)
Lakers fans, do what needs to be done to help the Lakers start over. Fire Mike Brown.