  By considering a small sample of core-dominated radio-loud quasars with X-ray
jets, I show, as has been argued previously by others, that the observations
require bulk jet deceleration if all of the X-ray emission is to be explained
using the widely adopted beamed inverse-Compton model, and argue that jets even
in these powerful objects must have velocity structure in order to reconcile
their radio and X-ray properties. I then argue that the deceleration model has
several serious weaknesses, and discuss the viability of alternative models for
the decline in X-ray/radio ratio as a function of position. Although
inverse-Compton scattering from the jets is a required process and must come to
dominate at high redshifts, adopting an alternative model for the X-ray
emission of some nearby, well-studied objects can greatly alleviate some of the
problems posed by these observations for the beamed inverse-Compton model.
