Like Vucevic, Brook Lopez is a well-experienced center that could help the development of the Spurs' young core. Now in his 15th season in the NBA, Lopez has adapted to the new style of the league. If the Spurs decide to replace Poeltl, Milwaukee Bucks' big man could be an acceptable replacement. The Bucks still have time to give him a worthy extension that could go up to $74.7 million for four years. Splash Mountain will be an unrestricted free agent next summer, so if Milwaukee still wants him, they should hurry up with his contract extension.
The 34-year-old center joined the league as a back-to-the-basket big man capable of creating his offense. Lopez is also an excellent floor stretcher. Adding him to the squad would give guys like Jeremy Sochan, Keldon Johnson, and Devin Vassell an open lane to the basket. Additionally, he's a great rim protector, as he's averaging 2.9 blocks this season, the best around the entire league. In terms of rebounding, he's nowhere near the bruiser Poeltl is. Good thing for San Antonio that they have great rebounders in Sochan and Johnson.
Signing Lopez next summer could help the development of the Spurs' young squad. His experience is enough to help him adapt to Gregg Popovich's system. It's only a matter of which team will be quick enough to offer the big man a reasonable contract.