If Lundgren really said that he doesn't coach Safin on technique then he is telling fibs. He was clearly coaching Safin on technique DURING the final at Paris. Specifically, he was caught on camera more than once telling Safin to toss the ball higher and to the right. He used hand signals as well, the points of which were not as clear. (Keep your feet moving, maybe?)
Nevertheless, I'm impressed with the Safin/Lundgren team. Safin has definitely improved. And, while he still blows up from time to time, he now gets back on track for the next point. After all, it's fine to vent if you then immediately put it behind you.
Finally, Safin is not one to keep a coach on the payroll if he is not doing a lot of good. I think people were dismissive of Lundgren when Roger did so well without him. Now, I personally would put him on top as far as coaching status goes, followed by Cahill and then Gilbert.