Start at first level, for one thing. While the DCC diehards may cry out in pain, you're not playing with them. If you're not up for the Looney Tunes splatterfest, the funnel can get to be pretty tiring, especially if you have players who come to the game with a more modern mindset that their character is important, rather than a disposable avatar to be replaced when they die, like in a roguelike videogame.
Otherwise, the random tables are 99% wizard spells. If your group isn't playing with one, the randomness largely goes away, except when things go catastrophically wrong for a cleric.