  We present a model for the structure of baryons in which the valence partons
interact through a linear potential. This model can be derived from QCD in the
approximation where transverse momenta are ignored. We compare the valence
quark distribution function predicted by our model with that extracted from
global fits to Deep Inelastic Scattering data. The only parameter we can adjust
is the fraction of baryon momentum carried by valence partons. Our predictions
agree well with data except for small values of the Bjorken scaling variable.
