Watch the game again and you'll see Azaz for the first hour was on the left in a 4222/442. The BBC also corrected themselves after having it wrong and have it like that on the match report. They originally had Azaz central but anyone watching could see that wasn't the case.
https://www.bbc.co.uk/sport/football/live/c79j44e15rzt.app#Line-ups
When Scienza and Fellows came on at 57 minutes we switched to 4231. Scienza on left, Fellows on right and Azaz number 10 role.
He did until the subs of Scienza and Fellows in the 57th minute. For those first 57 mins Larin and Archer were central striker pairing, Matsuki right and Azaz on the left.
Then when Fellows and Scienza came on we switched to 4231 and Azaz moved to a number 10 role.
Ipswich are the bigger threat with more points and a game in hand. So a draw wasn't as good as a Middlesbrough win. But still preferable to an Ipswich win.
We look very different to when we played those sides last. Now playing 4231, a long unbeaten run, lots of squad depth, only one player out injured and playing with a lot of confidence running throughout the squad.
We can be one of those two, so only need one other team to beat them. Plus in our 6 pointer match vs Ipswich, any goals we win by have double impact on goal difference between us and them.