The Baggies currently lie eighth in the Premier League table, on target for their highest ever finish in the English top flight.
And with the summer transfer window rapidly approaching, the Scottish tactician has indicated that he intends only to build further on the group already at his disposal.
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"Our players aren't going to be cheap. I don't think anyone would be wise to come for any of our players because they will cost a fortune.
"It's difficult to speculate how many players will come because you don't know how many clubs are going to try to take some of your players."
Clarke went on to note that he would prefer reinforcements to arrive early in the summer, but admits he will be content as long as the the Baggies are able to bring in new additions by pre-season training.
"In an ideal world we'd get early signings. The early signing last summer was Ben Foster and the other ones came in over the course of pre-season," he continued.
"As long as we get to the start of pre-season and we've improved the squad, as and when they come in is irrelevant really.
"We run with a small squad but we run with a good squad and you have to use them well. The experienced players are really important at this club."