Malls should be implemeting a hybrid strata and REITS management model.
Basement 1, level 1 and 2: all your major anchor tenants e.g. banks, food courts, restaurants with outlets islandwide. They pay the 'market rates' for rent.
Other floors: small, independent shops or businesses with a net worth not exceeding a certain amount: they pay 10% of earnings every year as rent. Businesses that are the last three performers for two consecutive years get booted out... similar to a 'relegation' system in football leagues.
This is a healthier and more sustainable method to manage malls, and it avoids 'cookie-cutter' style malls, and malls with too many of a certain kind of business e.g. tuition centres.
It should definitely be done in the heartland suburb malls.