Except that the Congress has never been a genuinely "liberal" party, and it has never been centrist. It has been ideologically opportunistic, being whatever is needed to win at whatever point of time.
And "professionals"--Gandhi family?
1. Drop the Gandhi/Vadra family. Immediately.
2. Work with the people. Did one leader of the Congress do a fraction of what Sonu Sood did? You had an opportunity, and you blew it, spending the time fighting Gehlot and Pilot.