default assignment in strategy

Summary:

i have around 5 BU and 15 different collector and 10 different profile class assign to customer site level

Assume for customer we have two Account and 2 different site each site has different Profile class

Customer Name AAA

>Account A+ > SITE 41— Profile LATE FEE

>Account B+ >SITE 42 —-Profile NO LATE FEE

According to requirement there is no change in Strategy task for all All BU and profile class,

We will be having same Strategy task required to assign

so i am planning to have one strategy and one scoring creation because task requirement is same

Can i assign this at default assignment (highlighted in yellow)level both scoring and default strategy group , is this recommended approach ?