Kyle has played seven times for the Light Blues now but all of those appearances have been as a substitute.
Sandaza, sidelined lately with a calf injury, has had four outings but two of them have been as a replacement as well.
Lee McCulloch and Andy Little have both been in fine scoring form lately, scoring eight times apiece, and Dean Shiels and David Templeton have weighed in with goals too.
That means there’s little need for manager Ally McCoist to change his side unnecessarily while is remains so potent up front.
Nevertheless, Hateley believes the rough and tumble of the Third Division may lead to injuries and that could result in one or both players being called upon.
And while it is frustrating for them that neither is getting a start every week, the former attacker is adamant they should focus on ensuring they are fit enough to play.
Hateley said: “They have both got quality and different sorts of qualities. Sandaza is your typical continental striker who will take the ball in and will score goals.
“Kevin, meanwhile, is a big striker with a great touch for a big guy. He’s not the most mobile but get him in and around the box and he’ll put the ball in the back of the net.
“It’s important for both players that they get a good level of fitness because they’ve missed the pre-season and they both need to get fit. That’s the most important thing.
“They need to work hard in training and be ready for their chances when they come along because their opportunities will come.
“With the physicality of this league, there will be a need for everyone to come into the equation and there is good competition for places with them there.”