Should they allow instant replay in baseball?

I think umpires should be able to use instant replay in baseball.  Referees are allowed to use it in football, so why not baseball?  Are you telling me that umpires don’t make mistakes?  Because I have watched many games where they show you the play again and you can clearly see that the umpire made a mistake.  I believe that managers should be able to use some type of challenge play just like in football.  This would eliminate a lot of mistakes that are being made.  Let me know what you think.