" Hume is desperate to get in but Elvis did nothing wrong against Sheffield Wednesday on Saturday and Mark got two goals.
"Away from home, Elvis' pace will be good for us and the chances are that he and Mark will be the attack again. Having said that, Hume looks like being a real asset to us but he will just need to be patient and, when he gets in, he can take his chances.
"There is competition now, it is healthy, and Mark showed the sort of ability that will endear himself to the supporters and give a sign of what he is capable of.
"If we get a decent enough display and defend the way we played on Saturday, hopefully that will be good enough to get the points in Cardiff.
"I think we have got goals in us and if we make it two wins in a row, it sets up a bit of momentum."
City midfielder Danny Tiatto is injured so Stephen Hughes should retain his place for the Cardiff encounter.