Or warlock as they just magic all the live-long day.In 4E terms, most literary wizards would be all dailies and no encounter powers. They do one big wallop move that changes the balance, and then they fall back and maintain or support while the martials work the advantage.
5E wizards just keep on pumping out more and more spells.
The ones that do one big thing strike me as Ontologically Lazy; not being useful in service of a plot by a writer who lacks either the skill, will or knowledge to come up with a magic system that serves their story. D&D wizards don't even have that excuse; their existence is laboring under the weight of psuedo-Vancian tradition.