There is gold at the rim

The Suns commit the fewest TO in the west, 13.45 per game and with a -1.22 difference vs. opponents (3rd in the west). The Sonics are close, 4th, at 14.04 per game and with a -1.18 diff vs. opponents (4th in the west and neg numbers are good).
You can "give" 4 team fouls a quarter, per game, 16 total without sending somebody to the line. Suns commit just 19 fouls per game.
The Suns commit just 19 fouls per game while the Sonics commit 25. So, it looks like the fouls are likely on the defensive end for the Sonics.
The Suns have shot 114 FT that the opponent, while the Sonics have shot just 10 more.
The Suns count on getting fouled and going to the line more than the teams they are playing. They shoot .733 from the line, Sonics .792.
So, they don't foul and they go to the line more and they are committing nearly the same TO as the Sonics so they are NOT committing offensive fouls. The Suns are using there fouls efficiently by not sending players to the FT line as often or committing turn overs with them.
What? The Suns foul enough on the defensive end of the floor but send people to the FT line less. On the whole they are not committing fouls while the opposing player is in the act of shooting. The Sonics are a better free throw shooting team. So, what to do?
Drive to the rim. If the Sonics keep the free throw attempts even then the Sonics win. Move your feet and don't reach because they are not rebounding the miss anyway.
Get in the way but don't foul, and
box out, and
run a half court game and coming off screens where the Sonics usually shoot jumpers they should use those screens to turn corners and drive to the basket a little more. There is gold at the rim.

Sonics stats

Suns stats

Western conference game infractions