My starting team was six CD, six Hobbos, 4 re-rolls and a centaur. I soon added a apothecary (for the hobbos, obviously) and then a second centaur. You really need the hobbos for the movement (otherwise you may just as well play Dwarfs!). Hobbos do all the picking-up, passing and catching, and are really what makes the team work.
In a league of over 20 teams, playing for a year, the top 4 league positions were: CD (mine

), Dwf, Dwf, CD. The armour 9 and first 'Guard' upgrade for the CD takes care of the line, and various other skills for the Hobbos does the rest. I used my Bull Centaurs as assassins - set up deep to hit players coming through, then being handed-off the ball and running with it.