I don’t think so. Manafort is not stupid and Trump went into this knowing he would be targeted. Manafort won’t bend because there’s dirt on Mueller. The problem is that Mueller is using this to make Clinton people rich at the expense of Trump people.
Sessions needs to set a deadline for this trial to end - put up, or shut up.
Mueller has the protection of The Mob (The Democrats and the Media). If he hints at something, it becomes front page news. If he was wrong, it gets covered up.
That makes him dangerous because anything he finds gets blown into a scandal.