It's not so much Sega is it is who they've put in control of this particular department. There's other departments in Sega that do their thing, do it well, and make products their fans enjoy: Ryu Ga Gotoku Studio being the notable example, Nagoshi and crew know what their fans want, and give it to them. (Admittedly this new Yakuza is a bit of a wild new direction, with completely different gameplay, but even then it still holds true enough to the spirit that the fans are willing to give it a go) Sonic Team have been flailing in the wind since Yuji Naka left... Not to say all of his decisions post 2D Sonic are winners, because they almost certainly weren't, and I've always pointed to Yasuhara leaving being the cause. But when Naka finally packed his bags, Iizuka was essentially grandfathered in as leader of the team based on seniority within the department. ...and I'll come out and say it: Iizuka isn't, and never was the right person to become the leader of Sonic Team. It's gotten progressively worse as he's chucked shit against a wall hoping something will stick, as now you have this fractured userbase consisting of multiple age demographics all with different opinions on what Sonic gameplay is supposed to be. In an alternate dimension Yasuhara didn't leave, eventually took over, and none of this shit ever happened.