Yes, but only if a lot of people buying scouts on your server. On my subaccount I'm level 18 (highest level), playing league level 15, and 5* players are very rare. Because of that a lot of managers buying scouts and scouts list is different every day (mostly 1-2 scouts are new, the rest is the same). But on my main account where i can find 5* players, scout list is updated only when i received message.