We won a national championship largely with recruits who came in before the APR sanctions hit. Once they hit, we lost scholarships each year (meaning we couldn't sign as many players), we lost the right to go out on the road for early recruiting periods (meaning we were the only school not visible at a hugely important time in the recruiting cycle) and we were only allowed to send 2 assistants out instead of 3 (meaning it was harder to identify talents we really wanted).
How is it still being felt? Well, our 2013 class comprised 3 projects (Kentan, Samuel & Amida). For our 2014 class we landed our top target (Hamilton), then missed on our 2nd (Abu), third (Robinson), 4th (Colson) and so on down the line until we ended up with Cassell and Lubin - two guys who were clearly never going to be able to contribute meaningful minutes at this level. Those are our junior and senior classes right now.
Then, in 2015, we once again landed our top target (Adams), and also got in really early on another top-rated PG (Willie Jackson, who was a top 50 when we signed him). Except Jackson was pretty clearly a scrub, and after watching him some more we sort of mutually agreed to part ways. If we weren't hamstrung in terms of man hours on the road earlier in the cycle, there's a damn good chance we wouldn't have wasted more hours trying to sign Jackson and could instead have focused elsewhere.
But we didnt have that luxury. So while the 2015 class was the first to come in post-scholarship reduction, it was still a patchwork group because when these guys were freshmen and sophomores - when the recruiting process is really beginning - we had less access to them than literally any of the teams we were competing against. So if we made a bad early eval (as with Willie Jackson) or took a bad beat on an essential recruit (Abu) we were not able to make up for it.
Thus, the first class that we have that wasn't affected by the APR mess is the 2016 group... Which was a top 10 class in the country. And the fact remains that 3 of our 4 classes currently enrolled were the result of the APR sanctions.
IMO we won't be out from the shadow of that until the class of 2016 is in their junior season.
Apropos of everything, Syracuse is on track for their worst recruiting class in 20+ years. Sanctions work, and calling them an "excuse" is prima facie evidence that you're unable to process pretty basic information.