England head coach Stuart Lancaster will make a number of changes to his side for their second Test against New Zealand on Saturday.
England fielded a second string side against New Zealand's All Blacks but the second stringers pushed their hosts to the edge and the All Blacks were only able to score a try two minutes from time when England were down to 14 men.
Danny Care and Billy Twelvetrees both missed the first Test match but are likely to return for the second Test match.
"There will be more changes than you ordinarily make," Lancaster told BBC Radio 5 live.
"There were some pretty good players sat in the stand watching that game."
Lancaster made the most of his limited selections due to player injuries and players missing from Northampton and Saracens who met in the Premiership final last Saturday.
Scrumhalf Care missed the first Test due to a shoulder injury while inside centre Twelvetrees has an ankle problem.
"Danny Care, Owen Farrell, Tom Wood, Billy Vunipola, Dylan Hartley, Billy Twelvetrees, Luther Burrell - the list goes on - there are a lot of good players who were unavailable for that first Test, " said Lancaster.
"I've got to get the balance right. That's going to be the key thing because the priority has to be to win the second Test. If we win that then we have got a series that we can win.
"It is a must-win game and that will be the overriding decision that will influence where I go on selection."
England had made eight changes to the team that finished the Six Nations for the opening test but the replacements stood up to the All Blacks and have given Lancaster a selection headache.
"We don't want to get carried away as we didn't win the game, we lost," added Lancaster. "We have to make sure we rectify that next week.
"But, overall, to see players put under pressure and see Freddie Burns, Kyle Eastmond, Rob Webber and these guys that have waited patiently for opportunities, it is rewarding.
"It is a really positive sign for the long-term future of England."