If Sandro is on £100k a week, it's no wonder heads rolled. However, it should be noted that he only cost £5m, which at the time was seen as a snip (even though now we know it clearly wasn't).
If the lad was serious about playing, he would have moved on by now. The fact is that he is happy picking up his inflated wage (who wouldn't be), and we will be lucky to get shot of him this summer without sending him on loan again.
He had a massively streaky season where if you look at the goals he scored at Malaga a lot of them were efforts from all kind of weird angles and distances which indicates he was just on a decent streak in his first real full season in top flight football. You'd have hoped an experienced scout like Walsh would had factored that in and not assumed he was a Ronaldo clone and paid him accordingly.
He struck lucky with us so fair play to him. Every bit of football, here and elsewhere, since he joined indicates lower level La Liga is his level, at best. Strike it down as a cock-up but one we made not him. He's set for life, a symptom of the embarrassment of riches in the English game at the moment.