do you have to remove older drivers if adding new drivers of the same hardware id in NTlite

[cov3rt]

i was just wondering, do you have to remove the older drivers with the removal feature in ntlite, if you added drivers that are newer with same hardware id? or can you just drag and drop whatever you like in the driver section and not have to worry about the older drivers, if they exist already. i ask, because i am trying to create a custom windows 7 iso, but i dont want to worry about going inside or finding what windows 7 SP1 already includes, and just include all the newer stuff i want to add, mostly being wifi and ethernet drivers, if not, only those two types.