The letter outlined that the minister was ‘unable to determine with sufficient certainty whether the proposals received would be more effective in delivering the outcomes’.
Amlinellodd y llythyr nad oedd y gweinidog 'yn gallu penderfynu gyda digon o sicrwydd a fyddai’r cynigion a gafwyd yn fwy effeithiol wrth gyflawni’r canlyniadau'.