Some managers have success due to their tactical astuteness - coming up with something new for every opponent that gives them fits. Manning had a bit of this, and so did Des (see 2024 Playoff Final).
From what we've seen, I think Bloomfield may be older school. A man manager who's good at giving his players confidence and getting them to buy fully into the team ethos and run through walls for the cause. When he was trying to out-think opponents early in his reign, he mostly just out-thought himself. Now he's just playing the most obvious team in their most obvious positions, but he's got them singing a tune like they haven't all season.
And nothing wrong with that - football doesn't have to be complicated.