I think that it be cool. If there is a pre set list of different milestones and achievements, that your team or a certain player reaches you would receive different items. Such as green packs, tokens and or skill points ....etc...
Example
50Goals in a season-------Reward 2 tokens
ST Position gets 5 Goals------ 3Skill points
5 Game win streak ------- 50k
What do you think?
And Nordus it could make people spend some money as they would want the achievements. Then once you get the achievements and milestones you can showcase them to other managers!