Before trying anything creative, it would make sense to just nail the fundamentals. To me that means that (1) the cameras cannot miss the break, and (2) we need better announcers.
The announcers need to actually know the field. It's clear that in the U.S., they rarely do, especially with African athletes. If you don't actually know the athletes' stories and where they're coming from, then it's far less exciting. One of the reasons that I enjoy watching USAs so much is that I'm so much more familiar with the athletes. It heightens the drama. You need to know whether a race is an athlete's comeback, his shot at redemption, his rematch against a rival, his chance to cement his legacy, his first chance on the big stage, etc. There are a million sports narratives that make a race interesting, but you need more than just the race times for the narratives to work. I'll admit, this takes a significant amount of work. Maybe it's just not worth the networks' time to invest in getting announcers to be educated. It's hard to know, though, because there's obviously a feedback cycle. Bad announcing leads to lack of interest, which leads to a lack of investment in good announcing.
One issue with the announcing, however, has nothing to do with resources. There's a complete lack of enthusiasm. There's no excuse for a sports announcer sounding totally bored by what's happening. They need to convey energy and excitement in their voices. That goes a long ways towards convincing the viewer that what they're watching is, in fact, exciting.