Many solo episodes suffer from low energy because they merely cover a topic rather than playing a game.
In improv, "The Game" is the pattern or dynamic that drives a scene forward in a specific style of improv. Without a game, a scene in this style often ends up with just two people talking with no direction.
The same can be applied to podcasting, where instead of a game you have an angle. You need to find this angle to give your episode an engine and a reason to exist.
In this micro-episode:
The definition of "The Game" in improv and how it applies to thought leadership
Why generic topics lead to flat, directionless episodes
How to use a specific angle to keep yourself from rambling