  It is well known that technicolor models in which the electroweak symmetry is
broken by QCD-like strong dynamics at the TeV scale generally predict
unacceptably large corrections to low-energy observables. We investigate the
models of electroweak symmetry breaking by strong dynamics in which the gauge
symmetry is extended to include an arbitrary number of additional SU(2) and
U(1) factors. This class of models includes the deconstructed version of the
recently proposed five-dimensional "Higgsless" scenario. We conclude that the
additional structure present in these theories does not suppress the effects of
strongly coupled short-distance physics on the precision electroweak
observables. In particular, the possibility that the symmetry breaking is due
to QCD-like dynamics is still strongly disfavored by data.
