Is there any more to the Llalana / Bentley comparison other than age, nationality and being a somewhat late bloomer?
From what I've seen of Bentley on the pitch and some of his comments about life in general he would have fit into a hard working, high pressing Pochettino side about as well as the camel through the proverbial eye of the needle.
I think (in hindsight) Bentley as the star of that Blackburn side was cut a lot of slack, he could get away with some shoddy defending and even a lot of inconsistency going forward because of occasional moments of brilliance that no other player could provide for them. Almost the big fish in a small pond analogy to perfection.
From what I've seen of Llalana that's not been the case, he seems hard working and a team player. He seems a fairly consistent performer and there's not a massive difference in style of play between Southampton and Liverpool, certainly not as big as the difference between Blackburn and us.
Might be something I'm missing here, but I think he will do quite well for them. He's expensive, he's not young, but he's proven in the league and English so the premium fee is to be expected. For a club in desperate need for immediate quality in depth with their upcoming attempt to repeat a league over-achievement combined with CL football possibly wile losing their superstar permanently and at least being without him for 1/4 of the season it's the kind of deal that makes sense.
Bentley was weak mentally and the pressure of the move always seem to make him try to do too much, be too fancy. People forget he had a decent run of games when we had injuries, where for a little while he kept it simple and did a ok shift.
Lallana for me is a bit more of a hard working player, but his biggest challenge with Pool is he is likely going to be shoehorned into whatever space is left after the "untouchable" names on the team sheet get put in, vs. being a core part of the system built to include him.
I think the pressure difference between Blackburn and us, vs. Southampton and Pool is exactly the same