face in the crowd said:Probably to do with the fact that Flinders has made 40 senior appearances at either this level or above compared to Sullivan's 0.
The other thing that might come into the equation is that I think Richard Martin signed a year long loan with Dorchester. Although he has returned to the club, I'm not sure he is eligible to play in the first team this season.
Because somewhere along the line he was given a chance, If Sullivan was given the chance he could play 40 games within a season.