Man, i am sorry if it's not obvious to you that Pique, Messi, Iniesta know sh$@t about tactics...
They act like little children who think they know how the team should play, like when Xavi was trying to dictate (to Tata) how Barca should play.
These legends as players need a long way to just become proper coaches, let alone successful coaches.
Stop thinking that Guardiola story can be easily repeated. Guardiola is a phenomenon..
And of course, even if all of them knew just a tiny bit about tactics, this could not excuse their absolute HORRENDOUS performance. Look at the any moment in the game, look at first goal how they defend, look a the third goal where is everyone when the ball is being crossed in the box. Give me any moment in the game where all of them (bar Stegen) won any single duel in the game. Find that first and then look at the tactics..
It's not the first time this tactics have suffered, I have already said there were glaring problems and loopholes to such a system, it's just that people have chose to ignore them because of the scoreline.
Players may not know extensive or in depth tactics, but it is clear that they struggle in this sort of setup significantly even against smaller teams. Basic formation knowledge that they cant play possession with such a one dimensional set-up where they can only side pass to one another, and often has to resort to defending because they cant do much when opponents decide to high press. Iniesta has to switch his role to helping Suarez or Alba defending and clearly a player of his calibre cannot cover large areas defensively.
It also doesnt help that EV just stood by the stands doing nothing when he sees his team getting succumbed to pressure and not add a passing option upfront, instead allow Roma's 3 defender to easily contain our 2 slow attackers. EV doesnt intend to fast counter, and just want to defend and pass sideways which is never going to work.
People have seen this coming, and called out of the problems, and it's not like it's the first time people have seen such horrendous performances. Also, the fatigue issues and EV's stubborness in using the same set of players have drained them mentally and physically and it's hard for them to fight at all fronts.
Barcelona coaches never learn their lessons, it is only inevitable that such a defeat is bound to happen.