The Brazil 1982 side was always one of the more interesting historical sides for me. Always had some ill-conceived notions regarding that side before watching them in depth - that they were weak in defense, didn't have adequate protection from midfield, suffered from a lack of width etc. All of which, weren't true to a certain extent.
I actually think their defense was quite solid, Junior was a brilliant playmaking fullback-midfielder hybrid, but he was also pretty good defensively; Luizinho played a superb role as a LCB covering for Junior when required, and being solid in the middle; Oscar was a fairly solid centre-back too; Leandro was a real classic Brazilian wing-back who was truly gifted on the ball and could run the flank single-handedly, but he too carried out his defensive duties fairly well. No surprise that half that defense (Luizinho and Junior) made the TOTM.
Falcao wasn't exactly a flair playmaking midfielder who could 'only' put a shift in, but a truly complete midfielder who could rival B2B midfielders for tenacity and industry. A sublime and an immense all-round package. I'd say Toninho Cerezo's defensive game wasn't as impressive as it is generally made out to be but his ability on the ball was top notch for a defensive midfielder - played more like a B2B for 1982.
Their attack was truly brilliant to watch with Socrates-Zico-Eder being on the same wavelength and the likes of Junior, Falcao, Leandro, Cerezo all joining the party from deep. Junior playing as a pseudo-full back was actually really entertaining to watch tactically, and he himself claimed he preferred to play as a central midfielder, but you have to admit that there was a certain beauty in him marauding inwards and influencing play from the left back-LCM position. Never did I think that it was too centrally clustered or that they had too many superfluous aspects to their attacking game. The likes of Zico and Socrates were willing to forage wide when necessary (Socrates almost played as a RW against New Zealand for example) with Leandro and Eder being brilliant at providing service from their flanks, and there was excellent synchrony and fluidity in their midfield and forward play imo.
Well, Serginho was absolutely atrocious up top for them, couldn't finish to save his life and countless moves just broke down due to him but yeah, they didn't have any other alternatives with Careca and Dinamite being injured iirc.
Ultimately, it was simply their mentality which led them to fail against Italy. Quite tragic that, but they simply took the 'jogo bonito' and carnival aspect too far and didn't have someone like N.Santos/Djalama or Zito at the back who could shore things up and also more importantly, provide the leadership qualities that the side was sorely lacking in. They simply played their usual standard attacking game regardless of the context of the game or the occasion, and seriously lacked any semblance of pragmatism or tactical nous imo. It wasn't the case of them lacking the defensive/tactical tools but simply them lacking the means to implement or execute it. Having a purist like Tele Santana for a manager obviously wouldn't have helped. A top notch centre forward and a bloody minded and steely leader at the back or a more pragmatic coach, and I believe they could have rightly established themselves at the top of the pile when it comes to great international sides, as opposed to being a nearly great side which never quite fulfilled its glorious potential.