Al Horford could help a lot of teams: He can score inside, knock down 3s, and remains a quality defender. At age 39, a team has to monitor his minutes and not run him like he’s 29, but in a limited role, he could help a lot of playoff teams. It’s why he is one of the best free agents still on the market.

We’re a week into free agency and there have been more trades than impactful signings, but there are a handful of available players at moderate salaries that could impact their new teams, including Celtics center Al Horford.