You're looking for 4 different basic gameplans: Offense and Defense against Slow/Strength and Fast/Agile respectively.
My go-to site for BB tactics and n00b help is:
http://www.midgardbb.com/
Chaos thrives with long-term slow development, for which I'd suggest you drop one or two CWs from your starting roster in favor of more Beastmen. Aim to start with 12 players, not 11, and add Apoth/CWs/RRs as the team progresses. The 4xCW will help early on, but getting some early SPPs on Beastmen will help more in the long run. Once you have 4xCW, you tend to rely on them more for bashing and they tend to build out as CAS machines. But building out some Beastmen as flexible skilled players (or mutants) pays big dividends in the long run. Heavier reliance on Beastmen spreads your team development across more players.
I think that Chaos really benefits from developing a Quick/Short passing option on the Beastmen, which is harder to do when the CWs are monopolizing the hitting.
I'd probably start you with this article:
http://www.midgardbb.com/Tactics/Chaos_CoachKrusher.htm
If you're determined to start with 4xCW, I'd go:
4x CW
Minotaur
6x Beastmen
1x Reroll
split the change with AC/CL
For slower development, I'd take:
2x CW
10x Beastmen
3x Reroll
save the change for future CW/M/Apo buys
I'm confident that with conservative gameplay it is unlikely that you'll need more than 3 Rerolls (given the opportunities from the Kickoff table, Leader skill, and Pro skill).