Had Jellico been in command of the Enterprise at the first encounter with the Borg he’d blown them out of space. Picard was soft and let the Borg download the database. He cost the Federation many lives.
I don’t know if Jellico could have had more success than Picard upon meeting the Borg, but I do agree he probably would have gotten out a lot quicker than Picard did.
#3 Picard was always doing the wrong thing.
He did not wipe out the Borg when he could have. Costing billions of lives. Oops...
He had the tech downloaded on a tricoder for instantaneous travel thru a portal gateway but had it destroyed by Worf who then took Data and used the portal to get back to the Enterprise.
He revealed to the Romulans that Star Fleet had a ship that could cloak like a Romulan Warbird because it was not fair or something. Millions to die later.
He blew up an ancient starship of a lost civilization instead of sending a unmanned ship in to retrieve it after hardly exploring it after he got the Enterprise caught in the trap the other ship was caught in. He was embarrassed.
Data rescues a group of 20th century survivors from freeze now thaw you later as their ship was breaking down. Picard told Data that this was the wrong time and besides they were dead already so what did it matter. He later forced them to take another ship the long way home adding months to their journey to Earth because he thought they would learn something or other.
He let everyone die on a planet that he could have been rescued and scolded Worf’s brother for rescuing some.
He was going to let another planet full of aliens die but Data made contact with a little female alien and persuaded Picard to fix the volcanic eruptions.
Picard rescues Wesley Crusher / Wil Wheaton ....!