Will Gordon Hayward get the Celtics past LeBron's Cavs?

How do the Celtics project with Gordon Hayward? Russ Isabella-USA TODAY Sports

How good are the Boston Celtics with Gordon Hayward? Can they challenge the Cleveland Cavaliers for Eastern Conference supremacy this season?

After experiencing frustration in the trade market, the Celtics finally landed the star they've long hoped to add to their core of Al Horford and Isaiah Thomas. As first reported by ESPN's Chris Haynes, Hayward has chosen Boston over remaining with the Utah Jazz or signing with the Miami Heat.

Because of their value contracts, the Celtics can create the cap space necessary to sign Hayward as a free agent without surrendering any starter from last season's team that won 53 games and reached the Eastern Conference finals before getting beat 4-1 by the Cavaliers. So how does Boston project with Hayward?