I't much harder, not impossible. And if you have read all the information about the pitfalls of 2 pups you can work thru them.
Have to say, if you aren't in dog classes for the GSD though I would sign up for them ASAP. Will assure (force? ) you to spend the one on one time it will need AWAY from the puppy and get his manners/socialization progressing well. That way when the younger puppy is doing the normal 100% time sucking of your day you KNOW you have the class/homework time away from the pup.
MACH3 Bretta Lee Wildhaus MXG MJG MXF MFB TQX HIT CGC TC
Glory B Wildhaus AX, AXJ, XF
"How is it one careless match can start a forest fire, but it takes a whole box to start a campfire?." ANONYMOUS