I think he's the type of pacy player who needed some consistent time gelling with his team, and he's getting that now, and getting motivation. I know it's partly RM, partly injury, partly suspension that is to blame, but he's not played consistently for a couple of years, and that's the reason we've not seen him at his best. Who would not want to play well, so if we give him a chance, ok he's not getting back into the Belgium team, but at least he'll have pride to play for, and maybe that last big transfer he might want (though I think this is his level now, and he has to make it work at Europa or CL with Everton)
All people require different managing techniques, and especially so 'entertainers'.
Kevin needs to know he is wanted and is a trusted member of the first team squad, and needs regular games.
Every naturally talented person comes with heavy'baggage' and will show inconsistency. That does NOT mean they are melts, it means they need encouragement and be aware they have the full support of all about them.
Give Kevin the games, encourage him through his low spells, support his flair, give accolades for the good skills.
Ronald is a different animal to the disciplinarian style of
Moyes, the spiteful style of El Loco, and will, I am confident, be managed correctly by Ronald Koeman to maximise his skills.
Obviously, time will tell, but I would like to think the positive supporters will be pleased with the results.