In the NBA there is a strong correlation between FT% and shooting percentages. This is generally because free throw shooting is all about form.
So if a player has a good FT shooting percentage, he will generally shoot better from distance. The thing is that Smart's 74% career FT percentage isn't all that bad. He should at least be an average shooter, not the 36%/30% that we've seen so far.
Here then is what it probably boils down to - shot selection and finding his spots.
I believe that Marcus takes ill-advised shots. I've seen him take 3's with just 5 seconds taken off the shot clock. I've seen him chuck up shots with defenders draped all over him.
He's got to realize he's not Michael Jordan out there, he's not going to make those tough shots at 6'4 in the NBA. He needs to add some Ray Allen to his game, in terms of running off screens, and finding an open shot.
The other thing is that the 2 point game except for layups and jams should be dead to him.
Especially the long 2 is a very bad shot for Marcus.
Just look at his shooting percentages. 2017 stats from nbareference.com:
http://www.basketball-reference.com/players/s/smartma01.html#all_shooting0-3 ft 50.5%
3-10 ft 41.2%
10-16 ft 36.6%
16-<3 25.0%
-A 0-3 ft shot should be automatic for a professional basketball player. For Marcus it's a coin flip.
-A 3 to 10 foot shot should be a gimme for a professional basketball player. For Marcus Smart it is a bad percentage play. -9% to previous range.
-A 10 to 16 foot shot would have been money for Brandon Bass or Big Baby, for Marcus Smart it is his Kryptonite. -5% to previous range.
-A long 2, which is now statistically proven to be the worst shot in basketball, is basically a close your eyes and chuck the ball towards the rim shot for Smart. He should avoid it at all costs cos there are no benefits to ever taking this shot for him. -11% to previous range.
So what can Smart do to improve his shooting game?
1. Take 1,000 shots a day. Just like MJ did it. 500 in the mornings. 500 in the afternoon or evening.
2. Get a dedicated shooting coach/trainer or just hire Jaylen Brown's trainer and workout with Jaylen all the time.
3. Find your spots on the floor that are comfortable, and make them your hot zones.
4. Learn to use screens, picks, etc. to get an open shot because in the NBA you're not the tallest or the fastest anymore Marcus.
5. Become craftier with your dribble, so you can use a move to create an open shot instead of a contested shot.
6. As a shorter player you've got to be able to use the reverse layup with either hand consistently. The rim saves your shot from being blocked. Use it to your advantage, but you've got to have those shots on lockdown. As an NBA player there's no excuse to miss layup range shots.
7. Take tips from your own teammate Isaiah Thomas, one of the greatest ever at clearing shots over taller defenders, and learn his tricks. Learn to do that ridiculous early high floater near the rim from him.
video:
https://youtu.be/VBvjaCVnTsA8. Take more corner 3's than top of the key 3's. You've been proven to make the corner 3's at a much higher rate Marcus. You are making 47.8% of your 3's from the corner. But only 21.8% of your 3 point attempts are from the corners.
This is simply stupid if you do the math. You should be taking 80% of your 3's from the corners when you are doing that well at it!!
9. Play with confidence but play
smart, pun intended. Offensively Marcus is becoming a lot better as a passer. Now if he could only pick out his own shots with the same intelligence, his efficiency as an offensive scorer could take a quantum leap. He just hasn't put it all together yet.
The good news is that there's room for improvement and there are tangible, targettable tweaks that Marcus can make to his game to get better.
I mean just look at Avery Bradley and Jae Crowder. They have grown significantly better as scorers and shooters in Boston. It's just going to take some time. And hopefully Smart is already working on most or all of the tips that I suggested.