In fairness to Sasha, she had less coaches than most skaters had... Having 3 main coaches in her career isn't exactly a bad thing, and going back to Nicks had to have been humbling in someways...It can take awhile sometimes to figure out what coach works for you.... And well I think some skaters would be better off if they switched coaches: See Kostner, maybe even Meissner.
IMO, the issue is not the number of coaches , but whether a skater listens to his or her coach or not. Sasha was supposed to be head strong, and wanted her way on the ice. It was kind of cute at 15, when Nicks joked about "she heard what I told her, then she did what she wanted to do on the ice". But there comes a time a skater has to be more serious about listening to his or her coach. When she turned to TT, at the time the reason was her home rink was too crowded. When she parted with Nicks, I believe she had to pay up the rest of the contract. (yeah, having a rich family do give her the luxury.) Then she squandered training opportunities with TT by baking cookies all night, jetting to Paris for shopping trips. She might not have squandered her talents, but definitely by TT, and Robin Wagner reports, Sasha squandered opportunities with her coaches. Interesting you said "what coaches work for you". That is one of the bones TT picked, that (American skaters) have the mind set of what coaches work for them. According to TT, in the Russian tradition, whatever the coaches said is the way to go, and she observed the same with Japanese coahces.
Sasha had the luxury of a wealthy family paying for the best coaches in the world. Her family let her move all the way to Conn (and bought a house there) so she could train with TT. When TT didn't work out, Robin Wagner was so accomodating that initially, Robin commuted 3 hrs one way to go to Conn to coach her. Later Robin let Sasha stay in her home while training her NY. Robin did all this for her firm believe in Sasha (BTW Robin is rich, she does not need the money). Sasha squandered the opportunity with Robin too.
Yes back to Nicks, who was more willing to let Sasha do what she wanted. She received a "gift" at Torino. Calgary was the biggest chance for her to win a major gold, she squandered the opportunity by attending Hollywood parties, while Kimmie hit the ice training everyday. US nationals 07 was a major opportunity for her to defend a gold, and she did not even try.
IMO, her chances for more competitive skating is almost gone. Her team, and fans used to HYPE so much about her potential, the first woman to land a quad sal etc. Sasha fans and team have lowered expectations nowadays. I am sure Sasha will have the potential to do well as a show skater. Sasha still has the flexibility, her spiral is still almost full split, but at the cost of lower her back. Her spins are slower nowadays. I am not sure what it will take to succeed in show skating, But a show skater has to train too, just look at Kristi.
IMO, she wants to make it big at Hollywood, it is time to cheer and wish her the best as an actress. I speculate her heart is not in skating, not even show skating. But good news for her fans, they can follow her acting career instead. I am a big Sarah Hughes fan, when she retired, we don't see or hear about her much, and her fans just have to suffer the withdrawal.