Since there are 5 staff members, if one gets the correct order in which 4 players won the tournament, then definitely the order of all 5 players will be correct. Since it is given that all 5 staff got diff values, it must be 5,3,2,1,0.

Assume that staff A got all of them correct then B,C,D and E got 1,3,0,2 players in the correct order. Similarly, checking for other staff members , we arrive at two possibilities.

In either arrangement, D did not get any of the players in the correct order