For Jose Mourinho, watching Romelu Lukaku score goals for Everton and Belgium must be both heart-warming and thoroughly depressing at the same time.
On one hand, the Portuguese coach knows that Lukaku will be back at Stamford Bridge to score goals on a consistent basis from the start of the 2014/15 season. But on of the other, he must surely be wondering: 'why on Earth did I agree to loan this kid out?'
It seemed for all the world that Lukaku would lead the line for Chelsea this year after impressing in both pre-season and while on loan at West Brom last term.
But, bizarrely, Mourinho decided that the best course of action would be to loan him out to Everton. Not until Christmas, but for the entire season.
With each passing day, though, that particular decision looks more and more foolish.
Yesterday, the powerful 20-year-old scored both goals against Croatia to book Belgium's place at the 2014 World Cup finals. Before that he had scored four goals in his first three matches for Everton.
Mourinho recently stated that he has no regrets about allowing Lukaku to join the Toffees on loan for the season – but that doesn’t mean he shouldn't have.
Lukaku, on current form, is much more likely to score goals than Fernando Torres, Samuel Eto'o or Demba Ba. Chelsea's current strikers haven't set the world alight this season, while their most talented frontman is busy scoring goals for another Premier League club.
Mourinho has to save face, hence his recent comments to reporters, but sooner or later he'll need to hold his hands up and admit: 'I was wrong'.
This is one of the things driving Lukaku on, as well as his own determination to improve as a footballer. The Belgian admitted that he was disappointed to be loaned out by Mourinho, before adding that his aim is to score more goals than Chelsea's other strikers and to help Everton finish above the Blues in the Premier League table.
Only one of those objectives is realistic, perhaps, but there's no doubt that Lukaku should have been kept at Chelsea.
By the end of the season – and, in all probability, a lot earlier - Mourinho will have the reddest face of any Premier League manager.