  Studying scattering of heavy flavor hadrons and looking for bound states is
shown to give experimental information otherwise unobtainable about effective
two-body interactions between constituent $(qq)_6$ and $(\bar qq)_8$ pairs
respectively in color sextet and color octet states. All the successes of the
constituent quark model in $(uds)$ hadron spectroscopy are shown to depend only
on effective two-body interactions in color $3^*$ and singlet states. New
directions for bound pentaquark searches are discussed following the
availability of vertex detectors which can pinpoint events where a proton is
emitted from a secondary vertex. Any such event indicates a particle decaying
weakly by proton emission and the discovery of a new particle if its mass is
higher than that of known charmed baryons. There is no combinatorial background
and striking decay signatures like $p \phi \pi^-$ are no longer needed. The
beauty pentaquark ($\bar b suud$) and the doubly-strange pentaquark ($\bar c
ssud$) may be relevant to future searches. A simple calculation shows that the
effects of flavor-SU(3) breaking on their binding relative to the relevant
thresholds are similar to that for the singly-strange pentaquark ($\bar c
suud$) relative to the $D_s p$ threshold.
