Nonpartisan Local Government Activists (BS) is group of local opportunists from Lower Silesia. In almost every constituencies clear majority of their candidates carpetbagged from Lower Silesia. Their only ideology is localism and opportunism. "Democratic opposition" called them as "PiS-ian Troian horse", because they adopted ideology similar to opposition. The only Senator elected from BS in 2011 switched to PiS as quickly as possible. BS is also in coalition with PiS in Lower Silesia local government, where despite being smaller party they hold position of Marshal of Voivodeship (similar to Governor).
I think Nonpartisan Local Government Activists would join coalition with PiS, because they could offer them more than "democratic opposition".
If someone would create a map between the two coalitions, would it then be OK to group them together with PiS+Confederacy+One Poland+BS?
PiS+Confederacy+One Poland+BS = nationalism/populism/anti-immigrant/conspiracy parties
PO+Third Way+Left = pro-European parties