2x2s can be really entertaining. One I've seen a lot covers the dimensions of lazy-hardworking and idiot-clever. The outcome is
* hardworking-clever: Ideal!
* lazy-idiot: don't need to worry, they'll not usually progress.
* lazy-clever: hmmm. not ideal but may still be useful from time to time.
* hardworking-idiot: bad! They can do a lot of damage
In truth there are usually more than two relevant dimensions.