I’m not saying you are, but are you one of those who think transition football means the same as low block counterattacking football? There seem to be quite a few thinking this.
Transition focus is the degree of focus on exploiting the advantages given when you win the ball back from the opposition, wether high or low. The advantage is due to the relative disorganization of the opponent at that point, so in away it’s fitting to call it chaos football. Klopp’s original rapid high press football is a form of this. Pep’s Barcelona was very focused on defensive transition (win ball back quickly) but not so much offensive transition (exploit imbalance by rapid attack) where he’s often prefer gradual progress by possession and overload. Ten Hag’s Ajax could be said to be a bit in between of those two. Both Pep and Klopp has made admissions towards each other during their time in the PL.
What players you have will be important in chosing strategy. If you have Rashford, Fernandes, Casemiro as your highest trumps, it makes more sense to exploit transitional imbalances rapidly than to focus more on possesion. Bruno and Casemiro class A is perfect for high agressive press as well, when you have Martinez and prime Varane at CB and Shaw as a joker. Mount and Højlund would strengthen such a plan. Remember as well that Ten Hag said early on that Martial was very good in his press and perfect for this football where there is space in the opponents defence. Injuries killed off 5/9 of that olan, and rapid inexplicable decline took 2/9ths more. We never got to see the reason behind that plan.
If United are going to switch heavily towards more possesion oriented football, it demands a hierarchy that will get in several top class players more suited to that football, and any manager leading that change, which historically Ten Hag is, will need time And trust to get that up and running.