Whatever it takes to win the game.
Juve did step back away to Bologna when Bologna made a fast start and were pressing hard.
Juve let them tire themselves out and picked them off.
I've said on various occasions through the season that I thought Juve could do with having less possession in certain games.
Think back to the game Juve lost to Roma:
Juve had heaps of possession, but they weren't creating chances. All Juve's possession was resulting in was counter-attacking opportunies for Roma.
I'd have pulled Juve back and let Roma have some of the ball. That may or may not have increased the chances of Juve scoring, but it would at least have allowed Juve to defend in an organised manner instead of continually trying to deal with counter-attacks.
but I didn't see juve ever into constant defending mode for over 75 minutes against lower half serie a teams, juve didn't even do that against upper half serie a teams.
big difference.
and you actually gave an important example there, the game between roma - juve; that is actually the best example to contrast between calm intentional tactical defending with unintentional panic defending 'cause you went into a match with an utterly wrong approach
roma brilliantly neutralized juve, limiting juve from creating chances; juve didn't neutralize celtic, the fact that celtic was able to launch many crosses was the proof for that, whether or not celtic was ultimately able to score is quite irrelevant here.
and it all came from the oblivious tactical deficiency from 3 man defense and single wing each flank system against double wing each flank system.
another irony is that the game versus roma actually highlighted another critical concern over this 3-5-2 system, as some said, in offense, it is one man less, it lacks any penetration from the middle and finally the wing is easily neutralized.
if we only get llorente, it won't help much.
as for those who said "why should we abandon our 3 man defense?", it's stupid argument really, football is won by scoring more goals than the opposition, not preventing opposition from scoring goals; ability to keep clean sheet should be a bonus than an aim.