The Leeds boss has explained why he left the 22-year-old Dane out of his starting line-up against Millwall.
Many observers would have been forgiven for thinking the 49-year-old might hand Dane Casper Sloth a start against Ian Holloway's men after his impressive substitute appearance against Reading.
Redfearn, however, opted to start Austin in midfield as he feels the Leeds man allows the Yorkshire side to play on the front foot at Elland Road.
Redfearn did, though, affirm that he 'loves' Sloth 'to bits' - insisting these decisions simply have to be made.
"Listen, you've got to make these decisions sometimes. I love Casper to bits, he's a great pro, he works hard and he always gives us a bit of something when he plays," the Leeds boss said.
"But Rudy just gives you something different, particularly at home. He gives you that power and pace and I think the crowd react to that. He's a good catalyst to what we do with regards to being on the front foot."
Whoever Leeds start these days, it seems to have the same effect.
The Yorkshire side are on a roll and have won four of their last five Championship games. Up to 12th, Redfearn's men have the confidence and momentum to really push forward - and having the likes of Sloth waiting in the wings can only boost the possibilities available to the Leeds boss.
That, of course, depends on whether those on the fringes feel left out or not. But the likes of Steve Morison and Luke Murphy have shown that being omitted can do wonders for your form. Alex Mowatt isn't a bad example, either...