Many of the very best managers have possessed a ruthless streak.
Sir Alex Ferguson, arguably the greatest manager of all time, certainly did.
There was little room for sentimentality where Fergie was concerned. He was more than happy to make tough decisions for the benefit of the team.
Ferguson would even get rid of world-class players if he felt they were having a negative effect on the dressing room.
Players like Jaap Stam, David Beckham, Roy Keane and Ruud van Nistelrooy were all unceremoniously offloaded after falling foul of the fiery Scot.
Of course, Ole Gunnar Solskjaer never gave Ferguson a moment’s bother during his 11-year spell at Old Trafford.
One of football’s nice guys, Solskjaer has a very different personality to his former boss.
However, there have been signs this season that Solskjaer has taken a leaf from Fergie’s book.
We saw the usually mild-mannered Norwegian get angry during his post-match interview about United’s kick-off time against Everton after beating the Toffees 3-1 at Goodison Park on Saturday.
Solskjaer’s treatment of one or two players has also been a little uncharacteristic.
For example, his decision to leave Sergio Romero out of United’s Champions League and Premier League squads - reportedly without telling him directly - after denying him the opportunity to join Everton.
You wouldn’t expect that from a man like Solskjaer.
The Sun are reporting that Romero, who has arguably been the Premier League’s best back-up goalkeeper over the past couple of years, is currently training on his own.
The Argentina international is keeping himself fit in the hope that United will allow him to leave Old Trafford without a fee when the transfer window re-opens in January.
And the £100,000-a-week outcast is so determined to leave that he could even give up his pay off, worth around £1.5 million, in order to secure an exit.
United fans have a lot of sympathy with Romero and will wish him all the best at his next club once he finally manages to escape.
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