What would a message board be without predictions though? All I know is athletically and size wise Facey and Hamilton will fit in their positions a lot better. DeAndre's biggest problems his freshman and sophomore year is he was a 3 with no handle so he was forced to play 4 because of that and the lack of depth. Giffey was a guy who had confidence issues throughout his career until the tournament but played hard and was a glue guy who hit open 3s, played great defense, and rebounded well.
Hamilton's confidence combined with his shooting ability should make him a better shooter than Giffey coming in. He won't replace him in the areas of defense and rebounding though off the bat because he still has to get stronger and get a feel for the college game. His decision making and control will not be anywhere near as good either.
We saw Facey was a pretty good rebounder last year with a motor. Throughout DDs career his flaw was his consistency because of his motor. Facey will be a bigger and longer 4 who can get up off the floor a lot better. It's not hard to assume he will be a better rebounder. If he improved on his strength a lot over this summer and learns fast enough I wouldn't be surprised if he is better on the defensive end too. He probably isn't going to be as good of a 3 point shooter but at the same time he isn't going to rely as heavily as DD did on the shot anyways. He could be more like Payne from MSU with his 3 point shot and selection.