I think Betis are really lucky to have Pellegrini as their coach now. Because since he was brought to the job, Betis have become a really consistent team in the La Liga. In the previous season, they were very close to finishing the season in top four but their point losses on the final match weeks cost them the fourth position. They lost it to Sevilla back then. In this season, Betis are again a consistent team fighting for upper positions in the standings.
This time something is different for them as well. Sevilla are far away from this area and they are even under the threat of relegating for now. This might be a chance for Betis to make it to top four. This time they have Real Sociedad and Athletic Bilbao as different teams fighting for the same goal. But considering last season performances, we might have a similar scenario for those two teams later on. I believe Betis will stay more consistent than them and secure a spot for the Champions League.
Pellegrini is experience coach but he wasn't lucky while train big teams such as Manchester City and Real Madrid because he was sacked from those clubs but when train for mediocre teams Pellegrini can changed those teams to being an dark horses teams who possibly can break the domination from big teams and since 2020 he brought the job to Betis and makes this team can able to finish at top 6 for two seasons in a row even Betis achievement under him also quite good for europa league this season Betis can finish as group champion with unbeatable status and successfully to beat Italian strong team Roma and his highest achievement during with Betis is he can bringing this team to gets Copa Del Rey trophy last season
Yes, it's great what Manuel Pellegrini has done for Betis so far, at least with them being consistent in the top six from season to season, it's also quite impressive. What's more, if Betis can finish in the top four and play in the Champions League, then of course it's a big appreciation for Manuel Pellegrini as an experienced coach.
Yes indeed, Manuel Pellegrini is also not new to La Liga and as you said, that Manuel Pellegrini has coached Real Madrid and Villarreal as well as Malaga before in La Liga. As experience increases for Manuel Pellegrini, at least Betis are lucky because they managed to recruit Manuel Pellegrini to become coach from 2020 and have made a big difference to team performance
Also, for the competition for the top four especially for the remaining two positions for third and fourth place, I think it's a competition for three teams. Because Athletic Bilbao was only in the middle of the standings in previous seasons, of course I would doubt its consistency to compete in the top four.
Atletico, Betis and Sociedad, who from several previous seasons did have a chance to finish in the top four, and because Sevilla are no longer part of the top four competition this season. So maybe I believe that of the three teams, the two of them will be successful teams to finish in third and fourth positions for the final La Liga standings this season.