All you need to do is look at the shooting percentages above for our guards on this team and realize why we struggled. Wasn't that also one of the first years of the 3 point shot? (I think 82-83 was the first in the Big 10?) Todd Berkenpas never really became the sharp shooter he was projected to be coming out as Iowa's first Mr Basketball. IIRC, Carfino put up a fair amount of 3's, but I'm guessing as a whole we were abysmal.
The 3 pointer was still conference specific until the NCAA adopted it in ~ 86-87 (?) and it wasn't even kept as a separate stat line until then.
I remember hearing Raveling (at an event in Ottumwa) before his first season say that he thought we should win not only a Big 10 title but contend for an NCAA title. I also heard that Stokes was not a fan of Lute.
Yes, the Big Ten used the 3PT line for conference games only in the 1982-1983 season (I believe Steve Carfino actually led the conference in 3PT percentage) but then scrapped it for the next three seasons until it was adapted nationwide prior to the 1986-1987 season.
Also, the (45 second) shot-clock was added prior to the 1985-1986 season. Then it was changed to 35 seconds prior to the 1993-1994 season. The most recent change was to 30 seconds prior to the 2015-2016 season.