Getting back to the game and the OP, I think for me there are only two ways we can get all of our attackers/goalscorers in the team and maintain some semblance of central stength.
Firstly, we would have to drop Downing, and actually copy what Southampton did, and play a 4-2-3-1 with a tight "3" behind Sturridge:
Henderson would give us the ability to press, Lucas would give us the solidity in the middle, freeing Gerrard up to roam between the two and find his passes. Coutinho and Suarez would have free reign to play as two Number 10's behind Sturridge, so we get the mobility we know is effective but with the added option of the directness to Sturridge. We also maintain our width through the fullbacks. Skrtel and Carragher could be interchangeable.
On the other hand, we could drop both Henderson and Downing, and play a 3-4-2-1:
This would give us the solidity in the central defence where we are vulnerable, and retain the mobility and the direct option up front, but it means we play with a midfield two. The alternative is to play Suarez and Sturridge as a front two, and Coutinho as part of the central midfield (3-4-1-2) and maintain the 3 in the middle that suits us, but means we can only get our width from the wingbacks, which could make our possession somewhat predictable.
There are solutions there, but I'm not sure Rodgers will look in that direction?