Coutinho will be dropped for Lallana, he'll have to fight to get his place back. Coutinho was very inconsistent last season and there were plenty of times where he could have been dropped but there was no one to bring in to the position without a significant drop in quality. Lallana will also be used on the wings perhaps in some games.
As for the XI it will surely be: 4-3-3 Mignolet, Johnson, (new CB: Lovren hopefully)/Skrtel if we can't get Lovren, Sakho, (New LB: We will certainly sign one), Gerrard (dlp), Lallana lcm, Henderson rcm, Sterling + Markovic/(New forward signing; all three compete for the wing spots), Sturridge. Gerrard won't play every game so probably rotated a bit with Can and Lucas if he stays.
I would like to think a new LB will be signed so Flanno can take Johnson's place at RB but I am sure BR really rates Glen.
In my opinion if a good LB is there, that XI is overall stronger than the one we had last season. If we cannot get Lovren I think it is worth sticking with Toure and Skrtel rather than buying for the sake of it, hopefully BR will agree, or if not pull out an even better signing than Lovren. Right now though, Lovren really seems the best attainable CB option for us. Suarez, Borini and Assaidi leaving means we definitely need another Forward. I'd love it to be someone really good as the same kind of talents as Sanchez, but it will probably be Remy who isn't that bad.
Very happy with our business so far, especially if we complete the sales of Borini and Assaidi for £21m combined.