Fine, take out the North history. Scott and Simpson are two men with no ties to North.
Now take North of the last 6 years, with all the positives & negatives, all the development failures and the great games in finals and all the crushing, shearing disappointment of random games in Round 17 and losing on the Gold Coast and label it Club A. Scott coached them for 6 years and is responsible for all their positives & negatives. Now he is a free agent.
Take West Coast of the last three years, with their almost-bottoming out and their crushing defeats, then their revival under Simpson and their wonderful home record and their player development triumphs and their great midfield, their terrifying forward line and their top 2 record with their best key defender missing and their still-somewhat-suspect away record. Simpson coached them for 2 years of the 3, and now he is a free agent.
If you were the CEO of a football club, with a blank cheque and free reign to pick whatever coach you wanted free of any existing loyalties or foibles, which would you take?