I think competitions like EL (and now Conference League) give a false sense of accomplishment and are not designed for teams with high ambitions. If we keep playing in EL and keep winning it, as hard as it can be (no competition is easy nowadays), it will not lead to progress if we constantly live with the past memories… ohh the good old days when we were the kings of EL. We need to aspire for CL and La Liga, these should be our top priorities.
Anyway, we can play with a mixed A and B team here up until the semis if we make it that far, or have the full A team play only if a strong opponent comes along before the semis. Focusing solely on La Liga won’t mean much this time around as RM are a few wins away from securing the title (not mathematically, but you know how it goes in La Liga with the refs and all), so there’s not much to get from that.
For reference and comparison, when Simeone took over Atletico in the second part of the 2011-12 season, he went all in for the EL title and won it. But he used that to build something and they won the Supercup vs. Chelsea too, and constructed a strong foundation that led them to win the title and reach the CL final two seasons after that in 2013-14. In the following season after the EL triumph however, in 2012-13, they got knocked out by Rubin Kazan (it was most likely intentional) and focused on the league (finishing 3rd) and won the CDR.
So in a sense, it’s a matter of choice and we could either focus in the league and CDR, neglecting EL, or focus in EL and the league, neglecting CDR or similar. I think we can still compete in 2 competitions, especially since we’re out of the title race, top 4 shouldn’t be too hard to maintain, although you never know with this team.