The main focus for Porzingis, though, is how he impacts the Celtics offense. He’s obviously a stretch-5 with a quick release who can hit from 25 feet. He’s going to have an impact on the perimeter, drawing defenders away from the rim and giving Tatum and Brown room to cook. He’s going to have chances to hit open jumpers when the defense collapses and killed opponents for their overreactions. But the most noticeable impact he might have comes from an old school concept recently shunned in NBA circles