This business adviser would serve in a similar capacity to a sports agent for the team. Traditionally, sports agents represent individual professional athletes in negotiating their on-field contracts and securing endorsement agreements. However, as professional gaming is a tournament based league without individualized salaries, salary negotiation services and individual representation would be irrelevant.
Instead, a professional gaming sports agent would focus on sponsorships and other business opportunities for the team. An effective agent could leverage a team's substantial online presence (Twitter followers, YouTube subscribers, Twitch followers, etc.) to sponsors in return for sponsorships to provide products and financial support for the team. Such a tactic is not new for agents, as they have leveraged online followings for professional athletes and then-amateur athletes (see here) into sponsorships. Utilizing an agent would be in the best interest of eSports teams, as it leaves the players to focus on their sport while the agent secures much needed sponsorships to help get the team to additional tournaments.
The question then arises as to how agents would be paid. Normally, sports agents take a percentage of their players' salaries that they negotiated (generally 3-5%) and a higher percentage of any endorsements they secure (15-20%). However, that preexisting model does not fit professional gaming because players, or even teams, are not paid a salary. Additionally, many professional gaming sponsorships supply products, and not cash, which would be impossible to take a percentage of. Instead, agents would likely seek a percentage of tournament winnings in exchange for their services, as well as a percentage of any sponsorship money secured for the team.
Due to an agent's necessary reliance on tournament winnings and substantial online followings to be paid, teams that have yet to make a name for themselves in professional gaming may find it difficult to find an agent to represent them. It is important to remember, in both professional sports and e-sports, that agents do not establish a brand, but leverage an existing brand and shape it. An agent needs a foundation to leverage, and only the team itself can create that foundation.
Given the increase in popularity of eSports, and the money that is starting to flow through the industry, there is rising potential for a budding agent role for teams.