Mourinho endured a tough start at Manchester United after succeeding Louis van Gaal last summer.
But the former Chelsea boss has turned things around to spark hopes the glory days could be returning to Old Trafford.
United eased to a 3-0 victory over Saint-Etienne in the first leg of their last-32 Europa League clash last night.
Manchester United are a team on the up under Jose Mourinho
Manchester United player ratings against Saint-Etienne in Europa League
Thu, February 16, 2017
Express Sport brings you Manchester United's player ratings against Saint-Etienne in the Europa League
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Express Sport brings you Manchester United player ratings against Saint Etienne
Zlatan Ibrahimovic scored a hat-trick as Manchester United breezed past Saint-Etienne
It means the Red Devils are well placed to win three cups this season.
And Owen believes Mourinho’s decision to inject pace into his side has been the secret behind their revival.
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“When you’re playing at a club like Manchester United, you’ve got these players [with pace],” he told BT Sport.
Anthony Martial and Marcus Rashford have added pace to Manchester United
“Manchester United have lacked this in recent seasons in the Moyes and Van Gaal era. There has been a lack of pace in certain areas.
“Now there is such a variety of different type of players like Martial and Rashford. There is a load of pace in the Manchester United side at the moment.”