Quote: Jaywire "I thought the point of the 19 was that it was the final decision of who will play? Obviously you can swap someone out if they get injured after the announcement, but if you can just change them around for no reason then what's the point of it?'"
You can make as many changes as you like to the squad as far as I'm aware, but within reason. If a player is ruled out through injury but passed fit to play later on he can be added to the squad, or if players are injured they can be replaced. You couldn't name a 19 and then play a completely different 19 though obviously.
Last week against Hull the team was announced on Wednesday and on the Thursday three changes were made. If Finch can pass his fitness test he'll be added to the squad either today or given until the last possible moment to prove himself fit.
If Finch doesn't play and Wire's tactic is to target Powell down Wigan's left hand side then I wouldn't be too worried. Without Hansen on the right hand side that side of the pitch might be a little weaker and Smith will be the important man in the halves. The less he has to do in defence the better it is for Wigan.