The whole "go from ass to champion in one year" is essentially a fallacy - it can happen - but realistically it is only likely to happen at a blue-chip program that is in a cyclic pattern - may have had a primo squad that gets depleted by departures (grad / NBA) then may have a 're-load' year , then back into the fray... but the important thing is that they always had a system, a culture, a framework into which quality players can be integrated and quickly begin to function.
"Go from ass to champion in one year" simply does not realistically happen at a program that has had multiple decades of cycles of various sequences of - dismal /mediocre/ dismal / mediocre/ scandal/ atrocious/ atrocious ... In fact - if there was coach who would promise to do that - it would be terrifying - because the amount of ground that would have to be made up is so truly vast - and any instant fix would pretty certainly involve violative shortcuts of extreme proportions.
The "Quick Fix" is next to impossible because it take time to change a culture - to install a system - to get that systematic thinking ingrained into the minds of the players to the point where it is automatic - where body and brain are synchronized for each player - and then players are synchronized with each other.
The difficulty of making rapid strides is further compounded when you play in a highly competitive conference - not saying the the B1G is on top of the heap - but once conference play begins - it is game after game after game against tough, competent teams with systems already in place.
A year ago Pikeill was totally absorbed in the challenges of guiding Stony Brook to success - then March 19, 2016, Pikiell was announced as the next coach at Rutgers - - so in the past 10+ months he was hired - assembled an excellent coaching staff, scrounged to find prospects who would & could come to Rutgers and play - and has clearly begun to put in place a solid foundation - it is pretty remarkable.