When i said 'position to succeed' i wasn't really thinking of players changing roles i was more thinking of a change in approach that would hide the obvious frailties in our team (the back 4) - Klopp's system doesn't leave them any room for error. Give limited players, limited roles and don't ask too much of them. Our centre backs are limited - and we send the full backs bombing forwards at every opportunity and have no sitting midfielder.
But if we were going down that line of thinking Moreno is a standout candidate for me. He has always looked tidy on the ball and has good pace - whilst being a shit defender. We complained last season about how we were a different side without Mane's pace, now i probably need to stress for some of usual suspects that I'm not suggesting he can adequately replace Mane but simply having pace in the right areas of the team gives us more balance. Allowing us to stretch the field and keep us playing the exact same way - whereas last January we played Firmino or Lallana out there which suited neither and made us worse overall.
For me Moreno's best role is in an old school 4-4-2 wing spot where he wouldn't be asked to get on the score sheet regularly.
TAA is intriguing - he looks like he might be capable of playing anywhere. Pace, comfortable on the ball, great ball striker. I'd like to see more of him at full back for now though - where he makes use of all of those well. If he doesn't get up to speed in the Premiership defensively he'll fit in somewhere else.
Firmino is asked to lead the line and be a source of regular goals when i think it is fairly clear that is not to his strengths. He's a very good 10 playing off a better finisher in an ideal world.
Can is another one that i wonder about. Was his most consistent spell for us still the time he played in the back 3 ?