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Carlos Osorio/Associated Press

We are at that rare point in the NBA calendar when every team feels good about its roster. Whether they are rebuilding, gunning for a title or anything in between, all 30 clubs have reasons to be optimistic for the remainder of the offseason.

However, not every player can say the same about his team. The annual game of NBA musical chairs was larger than ever before this offseason, as almost 40 percent of the player pool tested free agency in some fashion.

With so much upheaval, it makes sense that some players may already regret their decisions, especially those who chose to re-sign. Whether it be a lack of playing time, a bad roster or additional extenuating circumstances, there are numerous reasons, midway through next season, these players might look around and realize they'd be happier elsewhere.

Let's examine some of their situations.