Whether bad accidents on-air (Austin at Summerslam, H. Godwinn against LOD, Putski at Ground Zero), longtime problems (Pillman, Rude, Foley around WM, Goldust after Survivors), clumsiness (Ahmed multiple times) or kayfabe (Shawn's smile, Bulldog at ONO?), every week on RAW you would hear how multiple people are on the shelf or unable to compete.
I don't know how many times planned matches were scrapped or altered (Mankind subbing in many times, mostly for Austin or Shawn).
Must have been thrilling for booking, wrestlers' pockets and fans (on TV and in arenas). Was the general change of style (more garbage wrestling, more hardcore stuff, more highspots/highflying) to blame, or just bad luck/clumsiness?