Why wasn’t Roy Scheider a bigger actor after his 1970s run (French Connection, Jaws, All That Jazz, etc.)?

Why wasn't he a significant leading man through the 1980s?

https://www.quora.com/Why-wasn-t-Roy-Scheider-a-bigger-actor-after-his-1970s-run-French-Connection-Jaws-All-That-Jazz-etc-Why-wasnt-he-a-significant-leading-man-through-the-1980s/answer/Jon-Mixon-1

Jaw 2 didn’t do as well as the original - Although it grossed more than $200 million USD, that was less than half of the original film on a higher budget. That made a lot of tongues wag about how Scheider couldn’t “win the big games” which was a reputation that he maintained for the remainder of his life.

All That Jazz underperformed - Although the film made three times its budget, the hype surround it meant that it was expected to have earned far more. That began Scheider’s “slide”.

Still of the Night/Blue Thunder/2010 - Three in a row that all under-performed. Blue Thunder likely hurt the most as it was hyped up on all of the available media and yet still was unable to make Scheider into a bigger star. Things were getting grim for him by the mid-1980s and he needed a hit to keep in the running.

52 Pickup - For some reason someone thought that this adaptation of an Elmore Leonard novel (Not even one of HIS best) would make a good film. And they also decide that the film needed Ann-Margret. Both were terrible decisions, the film bombed at the box office, and Scheider returned to the ranks of character actor for the remainder of his career.

Scheider eschewed any further involvement with the Jaws franchise - After Jaws 2, Scheider declined any further roles in the franchise. While that was his right, he also needed a franchise for when his other film roles dried up and he decided that he did not. After 1987, Scheider’s star dimmed and remained dim for the rest of his life.