Yes, that's the period between
March and April 2015 when we played Spurs, Liverpool and City and beat them all comfortably. We actually lost to Chelsea after a Hazard counter giving Mourinho the opportunity to jibe about sterile domination. Nevertheless, we finished the season on a real high, but we weren't able to build on that the following season, due in part, to a typically poor transfer campaign.
That summer we went after Ramos, Bale, Mueller and ended up with Depay and Darmian, which is not on Louis, but on the board/owners/CEO.
Also, during LVG reign, we beat City away, Arsenal home and away, won the FA Cup, and he promoted/gave minutes to Lingard, Wilson, Blackett, CBJ, McNair, TFM etc. In particular in Martial and Rashford you could see a glimpse of the future, which was exciting. Finally, I'd take Louis personality and news conferences over Mourinho every week. There's something about that Portuguese accent that just grates me. It might sound petty, but preferences many times are