Great player for us when fully fit, he's nowhere near that at the moment.
Actually I think there is more to this.
We play a much, much sharper and faster game then last time when Lallana was a regular first team player.
The team has evolved and moved forward, his best may not be good enough any more (on top of him being far from his best).
I guess we'll see if he manages to get himself fit again any time soon - we could sure use some midfield creativity.