The Leeds boss has responded to questions about his shot stopper - but didn't totally dismiss the criticism aimed at him.
The 23-year-old kept a clean sheet for Leeds against Millwall on Saturday afternoon but again looked nervous when coming to collect crosses in the air.
Redfearn, however, has backed his young goalkeeper, emphasising the weight of expectation on his shoulders at a club like United.
Offered the suggestion by his interviewer that Silvestri could have been far more confident in the air, the Leeds boss was not in total disagreement over the Italian's weakest area - but defended his overall progress at Elland Road.
"Marco is a young guy in a young team. Playing for Leeds United - it's a heavy shirt, a big club. The responsibility and expectation is big. We expect a lot, quick," Redfearn explained.
"But the players are getting better together. We deserved a clean sheet. Perhaps Silvestri could have caught a few things but he kept a clean sheet."
Silvestri has been criticised repeatedly for his inability to collect crosses confidently this Championship campaign - but his reflex saves have, at the same time, proved vital to Leeds on several occasions.
The 23-year-old is seen by the vast majority of observers as Leeds' best goalkeeper, making it no surprise Redfearn is keen to defend the Italian.
The Leeds boss admits he could do better in the air, though, so that should be the first port of call in any of Silvestri's training sessions.