can i get some help please?

[mrcub1221]

me and my friend are playing association and we have a major problem. Starters are fatiguing way to fast and I dont know what slider to use and want to move it to. not only are they getting tired to fast they stay tired. Last night i rested the entire starting five for the entire 3rd quarter and started them in the 4th. not 2 min into 4th q both teams starters had 1 bar and could barely make it up court. this is a game killer for us. is there anything to help this. Please help

thank you