Electoral Proportional Sponsorship system

I believe this is a fairly original electoral hybrid system. It utilizes an elected regional representative to sponsor and vet party candidates, and then proceed with helping to get the most supported party candidates appointed into government leadership positions. The envisioned process would be like so:

-Voting for non-affiliated members from a regional pool of vetted candidates, each campaigning on a primary cause, with several of the top candidates chosen out of each regional pool
-A second vote ballet for a political party which will lead to a proportional allocation of leaders to head a primary government divisional office seat (or cabinet). The leader of the party with the most votes becomes the government executive, and each party with greater than a 5% vote share becomes legitimate.

Each non-affiliated member that gets elected will enter government as a regional representative and each legitimate party will prepare and present a pool of party candidates to the elected representatives for them to each choose one to sponsor. The presented party members will attempt to gain as many sponsors as possible, but will need at least three to qualify to enter government with the aim to possibly gain a leadership cabinet seat.

Each party will be able to attain a number of cabinet seats proportional to their party vote share, but those parties with the highest proportion vote get to choose their seats first. So the party member with the highest number of sponsors of the leading party will choose their seat first, but if there is a member with more sponsors than them, they may choose to challenge for the seat and put the seat up to a general vote among elected representatives. This process continues for the next members of the leading party for those with the most sponsors until their proportional share of seat have been filled, and then proceeds for the second and third party until all cabinet positions are filled. Those who fail to gain a leadership seat join the opposition to vet and oversee decisions and policy.

Representative members join the office of their party sponsor, and may join one other office so that they can participate/spectate within both a cabinet office and opposition office, though the level of participation will depend upon goodwill/trust they have within the office.

Every two years there is a rotation with half the regions up for vote, and with the influx of new representatives a cabinet and party sponsorship shuffle occurs.

This hybrid system aims to reduce the polarization issues that occur within electoral cycles as the vote is for a local regional candidate that remains unaffiliated to a party. Also, since such a member is likely an accomplished individual, and will have direct access to the party candidates before choosing one to support, they will have better means to judge the character and ability of the party members that are presented. As such, the parties will be incentivized to present capable leaders that have more than just ability to influence the masses. And since these individuals have their party organizations behind them, they will have the resource networks necessary to accomplish those things they need in order to fulfill their governmental duty, and can also implement plans for long term projects.

Also, with representatives having access alternative government offices, it ensures a high level of transparency towards information and the decision process. And with an election cycle every two years, the risk of political shifts among the people should keep the government from becoming complacent.

Anyway feel free to discuss or critique this electoral/government system. It is hard to say if excessive friction between parties may lead to gridlock issues, but I think it could be viable with time to mature the structural interplay.