I think the issue is, not that Callum looked flat at the weekend, it's that he's looked flat for about 6/7 fights now. Since Fielding / Rebrasse. And rumour has is, Fielding's poor discipline let him down in the build up to that fight. Smith looks like he's stagnated. Whether that's an issue with Gallagher, or that he's now struggling too much with the weight, he just struggles to motivate himself, or that he simply isn't performing because the opposition are no longer rolling over, I don't know. What I do know, is that if the Smith of the last 18-24 months turns up against a fit Groves, it'll be Groves on a wide points card.
Given that Yarde massively ducked Burton, who at this stage beats Yarde imo, I'm not overly worried about him. Watching him waltz threw a dozen tomato cans may look good given his size, but he's not fought anyone that's really fought back that I've seen. Lets see how he does when under pressure himself. And I can tell you how he would get on against Bivol and Kovalev, he wouldn't get past the first half of the fight. He suffers the same as Buglioni in that he has limited head movement, and against fighter's that not only would be able to take his shots, but deliver big solid concussive punches of their own, he'd be found out pretty quick. It was a decent victory on Saturday, and he looked impressive, but he wasn't 1/40 on for nothing.
As for Buglioni, annihilate, come on buddy. As I say, he's limited, he's got poor to no head movement, and his footwork isn't great under pressure; all of which see's him tagged a lot (see Chudinov / Burton), but he's got a fantastic engine and work rate, and a decent chin to boot, and he would be more than capable of doing what no-one else has, and that's putting Yarde under pressure and testing his engine in the championship rounds; I think it would be far closer than you think*.
Either way, I can't wait to see him put another one of Gallagher's mob to the sword in March.
Edit : Also, sorry to go three for three, but Dubois is so over rated for me as well, He's not even been fighting proper heavyweights in some of his fights. I saw Dave Allen asked who would win out of Dubois and Joyce. Joyce all day long. It makes me laugh the amount of **** Hearn gets for protecting his fighters from Warren, when his protection of Dubois and Yarde is arguably worse.