My stance is this: We should be even more effective, with another year of maturation of our starters. Instead, we're producing laterally - at best. Mack and Adams leaving doesn't account for the full delta. Couple with the weakened schedule and statistically we've regressed. Everyone's eyes should be telling you this too.
Look at the offense when Mack was absent last year. We didn't regress much. He was "simply" somewhat explosive than DJ/Tice. It's not a fall off a cliff from him to his backups though. Similar for Adams. His absence has allowed MVS to shine.
Meanwhile, in the GCO the absence of Flowers would be sorely missed. That cliff drop-off happens from Flowers to Kean in the GCO. That'd be a much more fair reason to suggest a laterally performing offense is "okay" after a player moving on. "Thankfully", we won't have that excuse next year, hopefully Kean/Oladokun can perform better than Flowers in this vertical game that Gilbert and Co are forcing down our throats.