He sucks so bad he won 2 league titles and a king's cup.
yeah and..he got sacked..
Then came back to barcelona and lasted not but 6 months.
Return to Barcelona (2002–2003)[edit]
Van Gaal returned to Barcelona for the start of the 2002–03 season, but results were inconsistent. After four wins, four draws and three defeats from their opening 11 league matches, Barcelona lost three matches in a row, to Real Sociedad, relegation-threatened Rayo Vallecano and Sevilla. Two wins and a draw improved things but after successive defeats to Valencia and Celta de Vigo, he was sacked in January 2003 with the club just three points above the relegation zone.
And here's hoping he takes Man Utd to just above the relegation zone..