Abstract Bobaljik & Sauerland’s *ABA and the Combinatorics of Morphological Features attempts to explain the absence of ABA patterns across languages in terms of feature combinatorics. Their approach marks a step in the right direction by focusing on the algebra underlying the feature calculus, rather than the features themselves. I argue, however, that one can go even further and adapt a strategy that talks directly about cells in a morphological paradigm. In support of this argument, I present results from my MOL paper Graph Transductions and Typological Gaps in Morphological Paradigms. This approach has a lot in common with Bobaljik & Sauerland’s, but the two also differ in some important respects. Their respective insights may eventually be synthesized into a unified account.