I went through the video's, so that's a good sign.
I think the 4 characters are too similar to each other. I think you will want to make the 4 personalities not so similar and yet complimentary. Think of Seinfeld. George and Kramer are almost polar opposites, but yet can talk about anything, and interact in situations. I think you should consider defining the 4 players with each getting a distinctive personality. Maybe, one of the guys in the Tiger Beat short could worship Tiger and act out that role in the short, as an example.
The foursome should also interact in situations with other people on the course in some of the shorts. Waiting on the tee for a group to finally hit, etc. You could come up with another foursome, that this foursome hates and is jealous of for past history reasons. You could have an old pro shop manager that berates everyone. You could have a greenskeeper that is like Jim from Taxi. The list is endless.
It's a fine line between success and average. I felt the material was average
Hope this helps.