Rumours were that Dorsey, Farley, Williams were all interested in the role, knowing the min salary, not sure if any are true, but if they were they all likely would have been better fits than Christopherson,
Dorsey and Farley bring some athelticism, clutch shooting/scoring ability and length both above 6'5 that the team needs.
Williams brings a pg, who has the confidence/ego to take over a game, which the team needs.
All have the style of play that puts bums on seats, but not necessarily a 'Marty' type of guy, all would play with some flair/attitude/'wont get bogged down in structure' which ironically makes them better fits for the role, but likely the exact reason they were not picked.
Without seeing Christopherson play, he fills neither of these needs and at best will be Gibson with potentially a better jump shot, given the sixers dont seem to get guards great looks (or Weigh one of the best shooters in the league) he could end up being totally wasted ala CJ. I hope he ends up being a Lisch/DeVries level player, and used properly by coach, but anything less, and he will be wasted and may aswell have bought in one of the others who atleast bring something different to the team and would create offensive opportunities for themselves (assuming they get on court)
Best of luck Scott, and Weigh we are all cheering for you, but just think/worried your talents are/will be wasted, and therefore bringing not much to the team, through no fault of your own as you are just playing the role the coach gives you.