Just a general note: We should not judge Alaba's skills and competencies in midfield by looking at the Euro 2016 only. Austria had a nightmare of a tournament. No one had his normal shape. There were quarrels within the team. The coach made a few bad decisions. So even if Alaba would have had a good shape, it would have been a mission impossible.
In short: Alaba is much, much better in midfield than he was at the Euro. For example he was quite good in many matches for Austria during qualification. However, of course he is not 80 mio euro good as midfielder.
(But he could be... let him play 10 matches in a row there and maybe you have a new midfield star. Alaba also looked horrible as CB for Bayern when they had the injury crisis, but after a few matches he was much more solid. But to end with a general note: Last season was Alaba's weakest - still on a very high level course. Let's see how is doing this year.)