Los Angeles Lakers coach JJ Redick saw the urgency he was anticipating while his team practiced before what could be its final game of a tumultuous season. He said the Lakers were on edge, and they should be. The Lakers aren’t the only high seed with its collective back against the gym wall heading into a high-stakes Wednesday in the NBA playoffs. The third-seeded Lakers and the second-seeded Rockets are both on the brink of elimination when they host the Minnesota Timberwolves and the Golden State Warriors in a pair of Game 5s. Los Angeles and Houston are both grateful to be at home.