For it to happen soon we would need it to contain minimal web development (since the web development is somewhat out of our control, or at least how long it takes is).
How about this for a solution. We label each reserve position in the following way
4. Loose forward
6. Inside back
7. Outside back
Then for example if you put a player in 5th spot on the reserves bench and your halfback is injured, you know this player will replace him.
I think we could probably get this working not for this weekends games but the weekend after. What do you think??