Let them read from the same script. It won’t matter because Clinton has made so many public statements that have been shown to be false, she will have to explain the discrepancies, which will likely lead to a perjury trap. Unless the fix is in (highly likely) she will be hoist by her own petard.
Don’t forget her IT man Pagliano is cooperating with the FBI. Secondly, there are 3rd parties involved with this as well seeing that the server was physically housed outside of her NY residence.