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Local Group dwarf spheroidal satellite galaxies are the faintestextragalactic stellar systems known. We examine recent data for these objectsin the plane of the Baryonic Tully-Fisher Relation (BTFR). While some dwarfspheroidals adhere to the BTFR, others deviate substantially. We examine theresiduals from the BTFR and find that they are not random. The residualscorrelate with luminosity, size, metallicity, ellipticity, and susceptibilityof the dwarfs to tidal disruption in the sense that fainter, more elliptical,and tidally more susceptible dwarfs deviate farther from the BTFR. Thesecorrelations disfavor stochastic processes and suggest a role for tidaleffects. We identify a test to distinguish between the {\Lambda}CDM and MONDbased on the orbits of the dwarf satellites of the Milky Way and how stars arelost from them.

Local Group Dwarf Spheroidals: Correlated Deviations from the Baryonic Tully-Fisher Relation