avoir une tête et des jambes

Etymology
lit. 'to have a head and some legs'.

Verb

 * 1)  to have a combination of intelligence and athleticism

Usage notes
This expression may be used in the negative in either of two ways:
 * avoir une tête mais pas de jambes
 * Literally, to have a head but no legs; colloquially, to be intelligent, but unathletic.
 * ne pas avoir de tête mais avoir des jambes, or
 * avoir des jambes mais pas de tête
 * Literally, to have legs but no head; colloquially, to be athletic but unintelligent