The Utah Jazz were in desperate need of big changes — and sooner rather than later. Their confidence was waning. Their losses were piling up. Their postseason chances were dwindling by the day. Not to get political, but they needed about as much change as Barack Obama promised before being voted in as the country's president. "Tonight is a playoff game for us. … It's a must-win for us," Jazz point guard Mo Williams said after Saturday morning's shootaround. "We know where we are as a team. We know where we want to get. We know what we have to do to get there." More showings like Saturday, and they'll get there. For a change, the Jazz earned a hard-fought victory, gutting out a 90-84 win over the Memphis Grizzlies at EnergySolutions Arena.