Have watched several Duke games this year and last night's Notre Dame effort may absolutely be the blueprint for success.
On defense, they didn't double Okafor but hugged the 3-line tight. Basically acknowledged he would get his, then played hack-a-shaq late (Okafor's FT shooting is atrocious). Limited guards to 3-17 shooting from 3 so they could never dig into the deficit.
On offense, kept attacking the belly, got Okafor sent out for stupid fouls on a few occasions, kept making midrange jumpers and extra passes to the bottom of the zone. Without Jahlil on the floor, Duke has no identity. And, keep in mind, they only have 8 players.
Might be a turning point for playing against Duke. Requires making shots (not Iowa's forte) but another team could capitalize in a big way.