Go to the main menu. Select the team you are going to face in global challenge. For example, if you are doing the ''Aussie Rules'' challenge, then go to the main menu, select 'Team Management' and choose 'Solomon Islands' because that is the team you will be facing in the challenge. Intentionally switch around their starting lineup. For example, put forward players on defense, etc. This will drastically reduce the difficulty of the challenge. This can be done with any challenge.