Atletico Madrid just need to maintain consistent performance until the end of the season and they have the same possibility as Barcelona and also Real Madrid to win the La Liga title this season, Atletico Madrid's strength is much better so they cannot be underestimated.
I see there is a chance for Atletico Madrid to win the title because Real Madrid and Barcelona this season cannot maintain consistent performance so even though overall Atletico Madrid's strength is not better than those two teams but if Atletico Madrid can maintain consistent performance then there is a big possibility for them to win the La Liga title this season.
Atletico Madrid played well but they have to fight against two strong competitors Real Madrid and Barcelona, and this title competition is very tight among three strong candidates. Their performances in La Liga can affected more or less, or even seriously by matches in Champions League. It's interesting that Real Madrid and Atletico Madrid have to face directly in Champions League and only one of them will be in quarter final phase.
The club that has to leave Champions League after round of 16 will be able to focus more on La Liga, and La Liga title competition will have big changes after round of 16 ending. It's likely that Atletico Madrid will have to end in Champions League while Real Madrid and Barcelona will move next, then Atletico Madrid will have better concentration on La Liga than two competitors.