Wizards hope rebuilt roster returns to winning ways

Wizards chalk up failed season to injuries and inconsistent defense.
Wizards intend to re-sign Kyle Kuzma and keep Kristaps Porzingis despite disappointing finish.
Bradley Beal wants to stay in Washington but acknowledges changes are needed to improve.
Front office will re-examine approach but considers complete roster overhaul unnecessary.
Team aims to improve transition defense and hope for better luck in NBA draft lottery.