Interesting you mention that - I think Brendan Dyksterhouse was hired after he posted a YouTube analysis if MS training GS at Vail.
Of course, he was then (after a few seasons) fired after posting videos that the Team disliked....
Once again, I'm "fairly close to this one." That may be an understatement. RBD was doing a lot of work with Mikaela when he was the Athletic Director at SSCV, and she was home. At the request of her mother. A lot of that initial video was shot that first year. A you may recall, he joined her full time mid season, later on. The deal was that the USST reimbursed SSCV for his salary, and he remained a SSCV employee. At the end of her season, he joined the USST as the Head W's tech coach....aka Mikaela's coach.
He had posted video with his analysis and commentary of her training long before he began to coach her full time, and long before he joined the USST. He has also done a TON of video work {still does}, and has even coached a number of WC athletes virtually via video, working in concert with their coaches. When he was with her on tour, he began to release his "World Cup Diaries" videos, which were more fun than anything else. All good. No issues.
Dykster was not fired. His leaving had zero to do with "the team" disliking video that he posted. He had been the coach of the WC womens tech team. At the time it as more than just Mikaela. He had Resi, Lila Lapanja and Paula Moltzan. When Mikaela has on the shelf with her injury, he spent a lot of time with the others. Lila, in particular, and Paula made huge gains.
At the end of the season, in training once or twice, Mikaela was not skiing as well as she had in the season, and "rumor has it" that in more than a few timed training runs, she was not winning. This lead to Eileen Shiffrin going to Tiger and Rearick, demanding that Mikaela exclusively be coached by one coach, as she needed that focus. She presumed it would be Dykster. I have also heard that she snapped that things were not "fair" because he was using video of Mikaela to train and coach the others.....which as most know is pretty standard procedure. I heard that she made it seem like he was passing on trade secrets. At any rate, Dykster wanted no part of that circus. None. So he left. Dykster is always in demand, And, then the team convinced Mike Day to leave GMVS, and take on running what is Team MS, with the USST. He's the head coach, with one athlete,
But no, the team didn't fire Dykster. And I have never heard from anybody that they disliked any video being posted, etc.
I am also close to a guy who shot much of the initial video that D used in that analysis, and who assisted D quite a bit in working with her at Vail, Copper, Loveland in those years.
Big fan of Dykster's. Have been for decades. Just felt that I might help by weighing in.
I'm not getting into the Reilly, JB, HH, technical skiing thing any more. Done there.
I would say that their are no WC coaches that know of who could jump into a WC GS course and compete with the women. Some, when they were athletes, yes. You lose that fast, and work on the other stuff....like the coaching!