There’s a pretty big debate about who the true leader of the Justice League is. It’s often a toss-up between who deserves this weighty position of leadership versus who may be best suited for the part.
Harrison Wells was a character who should only have lasted for a single season on The Flash. He should have not been seen again at the premiere of season two like so many single-season villains before him.
The Flash Season 4 started out with a huge upgrade for Wally West. Earth One’s second most iconic speedster had to very suddenly go from the supporting legacy character of Kid Flash to the leader of the team.