Groups left outside the peace deal, notably the 1m Uzbeks spread across the country, and backed by Uzbekistan, have little to lose by destabilising the present diarchy.
Still others say the fabled Delhi diarchy - Mr Singh would run the government, while the powerful Congress party chief Sonia Gandhi ran the party - has failed.
Politics is a fickle business, and three years into the Congress-led government's second dismal term in office, Mr Singh's strengths - and the Delhi diarchy - appear to have become liabilities.