I don't care about his reaction - he had a lot of time and chances to prove himself - SAF used that rotation and dont ignore any of his first team players - if Nani is a bad signing - OK - sometimes happen to a player to not live to the expectations - it happens before it hapens now - SAF and Nani are human beings at all - SAF sometimes can be wrong at times (jemba jemba, cleberson and others) , but I have never question his ability to create and manage the team - because he is a natural winner all the way.
If Nani is so desperate to show himself and became a next football superstar instead of making the god damned single cross, and understand that he is not the only one on the pitch - it's better for him to go to some mediocre team and entertain the home fans with his tricks. The only important goal which is vital and I can remember is Nani's goal against Tottenham in the begining ot 2007-2008 season, when United had a bad start of the season and the win against Tottenham was the key to the winning road again and win EPL.
However I questioned his "future superstar potential" then, and I am sure now that Nani just missing some basic things to become something other than hot prospect.
And for the money which SAF spent over Obertan - I consider it is a great deal and best money spent from top club in Europe recently - no one will blame SAF for signing him even if he remains a impact sub till the end of the season.