He was pondering whether this hero profession template should be magic based or melee based, or perhaps a combination of both.
If it were a melee warrior profession, should it lean towards strength or agility, should it focus on small-scale combat or be suited for the chaos of the battlefield, should it specialize in strong battlefield assaults or battlefield survival.
If it were a magic profession, should it focus on damage dealing or controlling the battlefield, with damage being either single-target burst or large-scale AOE, or perhaps summoning?
You can't have your cake and eat it too; being well-rounded also means being mediocre. You must have a unique feature, a strongest point.
Additionally, he had to consider whether this hero profession should be compatible with other races.