I play a lot of TT Yan Lo, and I typically will take Tosh with his upgrade and then hire some punk zombies with Recalled Training on Izamu, and sometimes on Yan Lo himself. Yan Lo can get a lot accomplished with Recalled Training, making it easier to get big pieces engaged with your stuff using Lightning Dance. But I agree that some of the rezzer upgrades are better. Also consider taking Tengu with them, they have an amazing regen ability and can be great scheme runners while being able to zero action and get rid of opponents scheme markers.