Nah, not so much IMO. When I was playing H.S. ball, my dad used to gripe about free-throw shooting. "That's just concentration," he'd say. At the time I believed him. But in retrospect, it's rarely about concentration. If you're at the line concentrating on mechanics, you're in serious trouble already. It should be smooth and relaxed...hands and eyes.
If the effort hasn't been made enough in practice, then mechanics are the main thoughts. If the effort has been made, it's about repeating makes.
Certainly it's not effort. Nobody goes to the line and thinks, "I'm not going to really try to hit this shot." Guys like Scotty who have OK form but miss a lot anyway are probably trying TOO hard.
again, it's about effort away from gameday and not gametime effort.
Coaching emphasis? I'd be pissed if Tennessee's basketball coach was emphasizing FT's to the detriment of team offense, team defense, ballhandling, rebounding, threes, tough twos, etc.
we're clearly emphasizing something to the detriment of all of them. Be pissed.
Now, if by "effort," you mean, "whether they're putting effort in the offseason," then Wayne and Maze are prime examples that UT players ARE being taught to do that. As I pointed out, each raised his FT% by 14 points in a single year while at UT. Seems like the offseason effort is there, program-wise.