I don't see us (or anyone) being able to sign a mass of new players.
Even without any changes to the makeup of the squad, I think there are some changes that have to be made to how they are used.
JP has to suck it up and admit he's no longer a long-minute prop. He can still start, but needs to be taken off pretty quickly. Given that Leuluai is the same, one of them will need to move to the bench, otherwise you'd have to replace both starting props within 15 minutes.
The coach needs to work out the best way to use Sinfield, McGuire, Burrow, Ward and the hooker (I thought Lunt looked average at Wembley and TBH would rather go with McShane and Hood). This is particularly the case if Hardaker is not going to be involved in making plays a la Webb. Some hard decisions need to be made here - we again seem to have too many chiefs, not enough Indians and even then look clueless at times.
Perhaps the most ironic thing about the weekend is that Tony Smith was lambasted for being unable to coach an England team against Australia, and yet has turned the one area he identified in defence as a real problem - second man plays with dummy runners - into a massive strength for Wire. Watching Wire score those second half tries really was akin to watching Australia take England apart out wide.