private Node findParent(Node current, Node del) {
        assert current != null;
        System.out.println(current.data.getName());

        if (current.left == del || current.right == del) {
            return current;
        } else if (current.data.getName().compareTo(del.data.getName()) > 0) {
            current = findParent(current.left, del);
        } else if (current.data.getName().compareTo(del.data.getName()) < 0) {
            current = findParent(current.right, del);
        }

        return current;
    }


    @Override
    public Delegate remove(String name) {
        Node del = findPos(root, name); //Find the specified node
        Node parent = findParent(root, del); //find the parent of that node.
        Node rep;
        if(del == root){
            root = null;
        }
        else{
           if (del.left == null && del.right == null) {
                if (parent.left == del) { //delete left subtree
                    parent.left = null;
                } else {
                    parent.right = null; //delete right subtree
                }
                } else if (del.left == null) { //replace current node with its right subtree
                parent.right = del.right;
            } else if (del.right == null) { //replace current node with its right subtree
                parent.left = del.left; //I get a null point exception :(

    }
        }
    return null;
    }