The kid definitely cares about getting better and about winning. But I worry if he's focusing too much on strength. His game is about fast processing and making the best decision out of 4-5 reads every single snap.
He already worked with Tom House last year, that should have already upped his arm significantly. Being a workout warrior is not going to help Mac. He needs to be a film rat.
It's hard to know what he should focus on since 2022 was such a mess in changing schemes and benching his top2 WR most of the season. I have a hope that Mac will be much better simply because Bill O'Brien is the OC and it will fix a lot of things across QB, playbook, scheme, play-calling, halftime adjustments, and also which players to play more.
I'm almost certain he will work with Tom House again this off season. Brady worked out to get a stronger arm, Mac will get a stronger arm, too.
BOB will fix the offense, BB will fix the OL. They all know what they need to do and Mac is doing his part until spring practices begin.