DeMarcus Cousins. Kevin Love. John Wall. Mike Conley. Crucially important players for teams with next no room for error to keep on keepin' on, so it's virtually guaranteed to upset more than a few applecarts when a key player like these goes down for extended time.
Some of them, like Wall and Conley, are in the enviable position of having contracts that make them unlikely (or impossible) to be traded. Others, like Cousins and Love, have unique situations that these injuries may have made them more likely to be dealt. The New Orleans Pelicans have a hard decision to make on how to approach DMC's situation, as he's expiring and could have picked his destination - before, that is, he ruptured his Achilles.