Anyone expecting Barca to have dramatically improved fitness levels after a month of Setien considering 2 1/2 years of Valverde probably also believe in the Easter Bunny
Yea, that's what I'm afraid too. How do you play like a fast and fit team after 2 years of lax training session with slow rondos and frequent days off? Seems near impossible. Which is why we need to refine our possession game as much as possible, to at least protect the defense the best we can.
The only way I can see this going forward this season is, even if people don't like it (and I myself am not a fan), risk as little as possible in build-up. The risk taking has to be made according to the team's energy and fitness state. If these are low, and they undeniable are, the risk has to be considerably lower. Because if the risk goes up, so do the turnovers and lost balls, and then what? The opponent is faster and stronger, and they will create chances based on these risk-related errors (either team error, or individual error). This translates basically to recycle possession whenever in doubt or in the slightest danger of losing the ball. Because as soon as the ball is lost, we lack the intensity, the work-rate, the energy to counter-press and get the ball back.
When we get that intensity and work-rate back, and I hope we do as soon as next season, then we can risk more, because we are better equipped physically to deal with turnovers and lost possession.
The best course of action for Setien is to recycle possession whenever in trouble. This will lead to relatively low chances games, but I'd take a 6-2 chances games, than a 12-8. If we up the fitness and energy level, then we can aim for 10-2, or 12-4 types of games in terms of chances. Because we'll benefit from the increased risk of pass due to being prepared to deal with lost balls in a more swift manner.