Fast runner on first and ball hit to the left of the 2B man. One of those slow enough to be able to go after it. Who is now your cut / relay man to third with that fast guy rounding second?
RF should be throwing that ball all the way to third no cut needed.
Yes....ish - obviously this is the longest throw in baseball but there still needs to be someone there. Great strong throw from RF but it's off line but low enough for the SS to relay to 3B for a chance or on situations where your 2B can get back to the bag then you can cut and throw behind.
If your RF has the arm to get the ball to 3B like a man then let him show it off in pre-game and you don't have to worry about a cut / relay man because that runner is probably not going to test it. But since most HS arms are not like that then you need someone there just in case.