The Warriors climbed to the top of the Magners League after a 25-13 victory over Ulster at Ravenhill.
Alastair Kellock and Johnnie Beattie were both rested for the game leaving Sean with some tough decisions to make.
Sean said in the Evening Times: “I have now got some very big decisions to make ahead of the Gloucester game.
“The pack were superb for us and the fact that we stole eight of Ulster’s lineout balls was huge.
“Both Richie Gray and Richie Vernon were magnificent, but we will have Al and Johnnie available for Friday night and there are some tough calls ahead.
“This win was a massive one for us ahead of the Gloucester Heineken Cup tie.
“You never know how the players are going to be after a five-week break for the internationals, but they came up with all the answers in horrendous conditions.
“We can now go into the Gloucester game with confidence high, but certainly not complacent.
“We are looking very strong right now and it makes a change not to be moaning about illness or injury ahead of a big game.
“We will just have to make sure we wrap the boys in cotton wool between now and Friday night.
“But with the home support at our backs and in this form we have a chance to turn around our Heineken Cup campaign.”