I especially think it's a bit wierd for mutations. Chaos is meant to be ... well, chaotic.
What are the skaven doing to produce all those long legged gutter runners? Making them wear warpstone pants?

If I remember correctly (I may well be wrong), 2nd edition BB had random tables and it used to produce some weird combinations. I for one would like to see the occasional Shadowing mummy or Multiple Block skink

I know this would take the skill out of team development and produce some useless star players, but I would like to give it a go.
Has anyone already made some random tables up, or should I give it a go myself?