Once you reach a certain stats level, the one and only limiting combat factor remaining is focus. Medical stims become absolutely useless.
In order to counterpoint the boring, repetitive tediousness of the "attack about a hundred times, then wait forever to regenerate focus" routine during combat it would be good to have the option to transform some of the physical stats into focus. That way you can get in another hit or two before retiring to your hotel room.
This is best tied to a series of linked Uni courses ("Zen") which improve the amount of focus gained by wilfully depleting one's own stats.