More change is awaiting Karl-Anthony Towns.  He’s already experienced significant change this postseason in his role in the offense . In the Eastern Conference finals, there will be notable change in his matchup, regardless of whether it’s the Cavaliers — who are up 3-2 with the series heading back to Cleveland — or the Pistons.  Towns primarily had the smaller Onyeka Okongwu guarding him in the first round and the hobbled Joel Embiid guarding him in the second round. When it wasn’t Embiid, it was the past-his-prime Andre Drummond.  There will be more talented defenders for Towns to deal with as the Knicks look to make their first finals appearance since 1999. The Cavaliers and Pistons present different challenges.  If it’s the Cavaliers, who are now favored to win their series, they have more finesse options in Evan Mobley — the 2025 Defensive Player of the Year — and Jarrett Allen. Karl-Anthony Towns looks to pass during the Knicks’ May 8 game.…