Basketball is a game of incredible momentum where a single run in the third quarter can completely erase a twenty-point lead. I have been focusing on the depth of team rotations lately, especially for franchises playing on back-to-back nights where the starters are likely to see reduced minutes. If a team relies too heavily on its starting five without a capable bench, their performance usually drops off significantly in the final period. Understanding the player efficiency rating (PER) of the second unit is a key factor that many casual fans tend to ignore when looking at a matchup. A professional approach requires a second-by-second look at how a coach manages his timeouts and player fouls throughout the game to maintain a consistent scoring rhythm.