I hate to be a pedant - but the problem with Ronald is absolutely NOT inconsistency. We have sat through 2 years of the absolute definition of consistency.
He runs down blind allleys, cannot see passes, and his crosses never create a chance. His fabled "pace" is also invisible - as I never see him run away from defenders, and (despite being a pro footballer) he has no grasp of the offside rule.
The issue unfortunately is not that he is inconsistent. Despite his commitment and work rate (that are stellar) he lacks evn the smallest bit of quaquality