A lot has been made of some of the tactical things going on with Mikel Artetas Arsenal recently. You’ve seen Arsenal build in a back 3 against Brighton, Southampton and Sheffield(FA Cup). All of these teams press with 2 strikers.
A common positional play principal is to have a numbers advantage against the first line. (3v2), (2v1), (4v3). I believe that is why you are seeing these 3 back systems. Arsenal actually were doing this pre lockdown. Just solving it differently
Sokratis signals Saka here to form the three against Bournemouth’s 2 Forwards.
What I’m getting at is this is something that has been there and something I think we will continue to see. Norwich usually only press with 1 forward so it will be interesting to see if Wednesday’s game is different.