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In recent studies of inclusive $B$ decays, it has been suggested that either$B$ mesons decay much more copiously to final states with no open charm thancurrently assumed, or $B(D^0 \to K^-\pi^+)$ has to be reduced significantly.This note takes the experimental $B(D^0 \to K^-\pi^+)$ at its face value andestimates $B(b\to$ no open charm) using complementary methods: one accounts forthe $c$ quark in $b\to c$ transitions, the other accounts for the $\bar c$quark in $b\to c\bar c s$ transitions. Through cancellation of errors, theaverage gives our best estimate of $B(b\to$ no open charm), and the differencemeasures the consistency. The results of the methods are consistent with eachother, strongly suggesting a much enhanced $B(b\to$ no open charm). Thisobservation indicates that non-perturbative QCD effects are probably causing asizable fraction of the $b\to c\bar cs$ transitions to be seen as charmless$b\to s$ processes, contrary to smaller traditional expectations. Thismechanism has generally been overlooked and may explain the existingexperimental data within the framework of the standard model. We then brieflydiscuss implications on baryon production governed by $b\to c\bar cs$processes, rare hadronic $B$ decays and CP violation studies.Comment: 26 pages, 5 figures, Latex. Expanded and two new figures adde

Large charmless yield inB decays and inclusiveB decay puzzles