Not to further exasperate my esteemed Duck colleagues, but I do wonder what it would do for the competition if after a certain point of shutting out the top Cog, it becomes impossible to displace a team for the Weekly Champion title. Depending on one's level of competitiveness, having the knowledge that a certain team is guaranteed the title after 5 weeks of holding the Cog might be a little disheartening. The prize is out of reach halfway through the season, with no way to shoot for it, and with the only consolation for a late arrival to the Champion's Cog a guaranteed semifinal spot in the Final Tournament.
But perhaps this is a deeper issue with the format of the Cogs and the turnaround time required for a defeated team to once again make their way through the ranks. Clearly this is a major issue with the Upcomers' Cog that must be addressed, but maybe it plays a role in the upper cogs as well.
Edit: added second paragraph