My daughter played on both a hs and a club team. Her hs coach was just hired to coach this sport (had a real job during the day/week) and was very young, so didn’t have a lot of contacts in colleges. She also couldn’t help with school records as she wasn’t at the school (they had an athletic department secretary).
The club coach was pretty good and her father had been a club coach in NY for years, so he also had connections. She was also the coach of the hs team (and a teacher there) at the rival high school. She was very helpful with recruiting. My daughter’s college coach liked my daughter so much she recruited another 5-6 players from the coach over the next 4 years.
Some sports are a pretty small world and the coaches from hs/clubs know most of the college coaches. I think crew is like that.