I think some folks around here are overestimating Duke's appeal on the transfer market. Sure, tons of kids would probably love the basketball aspect of playing at Duke. Some kids will be looking for a big time hoops experience after a few years at a lower level school, or one that isn't a hoops power. I am just not sure that their wishes include the step up in academics. Upper level classes at Duke, starting in the Jr year, take a big step up in difficulty, and that is just on the liberal arts side. The STEM demands are astronomical. Many of our OADs probably don't anticipate being around for those classes. As they finish their degrees later on, they can take 1 or 2 classes at a time, which really lessens the demands/difficulty. Regardless, kids committing to Duke know the score. I'm not sure a kid will chose a few years, or even 1, at Duke with the increased academic load.
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Grad transfers, sure. Pick an easier masters program and let a PHd candidate hold his hand (if needed) for the entire year, and get a couple harder classes out of the way in the summer.
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But if a kid can transfer to Bama or Duke or UK or UM or MSU......There are schools where you could get close to hoops experience, with less work, and less likelihood of getting supplanted or sidelined or having a role really lessened by Duke's recruiting classes.
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UK's Oscar was a success. The other transfers have been Meh. Solid starters, but Oscar is driving that team. Outside of him, the biggest impacts have been grad transfers, and they'll start running out in the next few years thanks to that Covid amnesty becoming exhausted.
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I remain doubtful that all that many transfers will be interested in Duke for a few reasons.