The thing about the Grizzlies is that they're an old team that's never been one of the better offensive squads in the league.
Up front, Marc Gasol is still very good but not exactly one prone to explosive bursts of game-taking-overness. Z-Bo has started off the season looking like Father Time is really starting to sink his teeth into him and Vlade's poaching of Koufus has left a gaping hole in their frontcourt rotation that Brandan Wright can't completely fill. Behind those three, the Grizzlies do have a bit of young energetic junkballer guys in Jarnell Stokes and JaMychal Green (not a typo) but I'd probably rate both of those guys a bit below Eric Moreland in terms of prospective NBA careers, which is probably just the homer in me talking.
Adding Matt Barnes helped them further build up the tough defensive image of their squad but did nothing to mask the fact that the Grizzlies feature a wingman rotation of offensively inept and aging top-five defender (Allen)/steady but unspectacular role player (Lee)/guy who most of Memphis wants to kill (Jeff Green)/ and aging tough guy whose season highlight involves him fighting Derrick Fisher. Oh, and apparently 500-year-old Vince Carter is still on the roster. In other words, no one who really makes you quiver in fear at the prospect of a fifty point explosion.
Mike Conley is perhaps the most underrated point guard in the league but he's also now being forced to be the first option on offense this year while also continuing to be a great defender. Playing against our two-headed point guard monster of Rondo and DC a day after playing Steph Curry, he could conceivably die of exhaustion halfway into the second quarter and Beno, while still a solid bench guard, would probably lose to Marco Bellineli in the defensively incapable gawky European white guy Olympics.
This could be the year when the Uglyball Grizzlies have a bit of a bottoming out. Then again, after I write this, they'll probably rattle off a huge win streak and go back to being a contender for the Finals this season.