Plot hole: When Freddy takes over Jesse's body at the party, there are several people watching through the patio doors when he confronts Lisa. None of these people ever make a sound, even when they see Lisa have a knife fight with a horribly disfigured man with long knives coming out of his fingers. The other party goers are completely oblivious to Freddy's presence until he comes jumping through the glass doors.
A Nightmare on Elm Street Part 2: Freddy's Revenge (1985)
1 plot hole - chronological order
Directed by: Jack Sholder
Starring: Robert Englund, Clu Gulager, Robert Rusler, Kim Myers, Mark Patton
Visible crew/equipment: When Schneider is being dragged along by two skipping ropes you can clearly see two wires attached to his shoulders which are actually pulling him along. (00:34:10)
Ron Grady: So, what about you and that rich babe you've been cruising to school with every day.
Jesse Walsh: What about her?
Ron Grady: Are you mounting her nightly or what?
Trivia: Make-up effects artist Kevin Yagher replaced David Miller, who designed the Freddy make-up for the original. Yagher only had a few pictures and what was shot from the original film to refer to, so he redesigned Freddy's look. Yagher studied pictures of burn victims and brought out the facial bones more than how Miller had done it.
Answer: I think the coach's death was a play on his character being at a S&M bar. People who frequent those places are usually into bondage and being dominated. Hence being tied up, and whipped with the towel. It also fits in with the homoerotic subtext throughout the movie.