Yes, UFOs haven't been proven to exist. Eyewitness accounts don't count, especially considering the ease nowadays of documenting these sightings. The landing in Africa you cited was shown to be biased as the woman who interviewed the children was a UFO truther.
In terms of coaching, yes, coaching decisions have an impact on the game. Absolutely. Anyone who watches the complexity of the game has to realize that when there are 22 players all given assignments, inevitably, those assignments become relevant to the outcome of the play. My issue, as I've clearly stated, is that much of this evens out over time and the advantage of one team over an other based on scheme alone is vastly overblown. Example I just gave: Super Bowl 49. You can praise the coaching staff for putting Butler into the game; you also have to criticize that same coaching staff for sticking short Arrington on tall Matthews for an entire half, and criticize them for that defensive meltdown touchdown drive before halftime. On every single play you can cite that one coach did something and another coach did something and then there was a result. But again, look at the oddsmakers and how much value they put into coaches: basically zilch. Because while coaching has an impact on the game, that impact is small over the course of 100+ plays. Ultimately, the coach who excels in execution is often the one with the better players, or a little more luck on that day. For the players, these playcalls are basically muscle memory...they play football all year, watch film, practice, etc.
