If Fernando Alonso does race for McLaren-Honda in 2015, it will force the team into making a very difficult decision, one that will inevitably be harsh on whoever is on the wrong side of that choice.
But life isn't fair. If McLaren does have to drop one of Jenson Button or Kevin Magnussen, it won't be an easy call.
Both have had good seasons. Magnussen has had a strong rookie campaign while Button has been consistently effective, particularly on race day.