Yeah Manfred is definitely too rigid to be in his current role. The NBA isn't perfect, but Adam Silver is never satisfied with status quo, and is always trying new things to spice up the league. Manfred hasn't really done anything aside from tiny cosmetic changes to speed up the game, but nothing as far as trying to reach more fans. A live draft like the NBA has would be great for baseball. Have Trout and Bellinger, or whoever, have 30 minutes to have a live draft and explain their picks. Would be a great way to expose their personalities to a mainstream audience. Or hell, do USA versus the World as the All Star game (guarantee Silver tries this within the next 5 years).
It's just sad that the NBA is growing and still willing to change things, while MLB is losing mainstream relevance but wants to avoid change completely. Silver is only a few years younger than Manfred so it's not even a "get someone younger" issue. It's a "get someone smarter" issue.