The term "Next Possession" came about during a halftime tirade during one of our games when I was coaching at Western Michigan University. I was heated because we were caught up with what had just happened and it was keeping us from performing well with what was getting ready to happen. During my tirade I screamed, "You have to get to the next possession. If you score, you have to get back on defense. If you turn the ball over, you have to forget about it. If the ref makes a bad call, let it go. What's done is done and there will be a time to address it. Right now you have to GET TO THE NEXT POSSESSION!"
Later that same season I was meeting with a player who was going through some off court issues with his family and girlfriend. He was carrying the weight of the world on his shoulders. I explained to him there was an appropriate time for everything. He was letting his personal issues interfere with his play and his performance on the court was impacting his personal issues. All in a negative manner. I told him to not take practice home with him because there was nothing he could do about it. As well, he shouldn't bring personal problems to practice because he couldn't do anything about those either for the next 3 hours. Be in the moment and get to the next possession.
It just came out of my mouth. And, it stuck. It became part of everything we did for the rest of my career at Western Michigan.
Next Possession is a term that is both literal on the court and a metaphor for life. It's more than a slogan. No matter what happens, good or bad, we have to get to the Next Possession.