"No I got rid of 3 1 star players about to retire and waiting to replace them when I can if I lose today may tank the league so we will see"

I thought that retirees are replaced with lower Q players.. but they are still replaced?????? Please confirm
If so, then why not still use them until you are able to find appropriate replacements.

Do you sell before you buy or is it better to buy and then sell, even if it takes a week to offload....