Assistants

I was thinking about this: What about the ability to hire an assistant-manager? There are several assistants available for hire, each having a different speciality. Like on assistant will give you a set % to gain a boosted stat for a match, or an assistant who is great at getting the crowd favoring you (giving you more chance to either live or kill).

there is that in the form of achievements. higher lever achievements give you more HP and other stats like strength, size, attack power etc.