The 20-year-old forward made a surprise return to the first team in the 0-0 draw with the Tigers at the weekend replacing James Vaughan in the second-half after being missing since pre-season with a serious knee injury which was expected to keep him out until the New Year.
Burley told News Shopper: "I wouldn't say Sean's 100 percent fit yet. We took a little bit of a gamble by putting on the bench on Saturday because he hasn't really played any competitive games but he's getting fitter all the time.
"He's got a lot of ability but he's been injured for most of the season so far but hopefully in the next few weeks he will get a bit more training and give us more as he gets fitter and sharper."
In his career with the Eagles so far Scannell has mainly featured as a winger but Burley sees him as an out-and-out striker.
He added: "He's an attacking player so you can play him through the middle or out wide in advanced areas. But he is a striker, it is his best position."