The phrase "diminish control" is correct and usable in written English.
You can use it when discussing the reduction of authority, power, or influence in a particular context.
Example: "The new policies are designed to diminish control over the employees, allowing for more autonomy in their work."
Alternatives: "reduce control" or "lessen control."
On a more profound level, the US must accept that it now has diminished control over events in the region.
These innovations would create for users more options and control over what is shared while not diminishing control over what is received.
Some limitations of adapting secondhand material show through in the uneven visual quality and diminished control over mood.
Sheik Adhami's diminishing control of his home turf became apparent minutes later when a carload of neighborhood militiamen circled the mosque.
The Chinese government could decide to create that depth, which would require accepting an open capital account, diminished control over the domestic allocation of credit, and a flexible exchange rate.
Isolated for more than two years in his presidential compound in the West Bank city of Ramallah, Arafat has exercised diminishing control over his party and his supporters in Gaza.
Hamels has always fared well at Dodger Stadium — "I love pitching in California," said Hamels, a San Diego native — but he is a different pitcher now from the one he was then, encumbered by an uneven season, heightened expectations and, especially recently, diminished control.
Mr. Arafat's diminishing control over the Palestinians in the streets and a reluctance to compromise on the status of Jerusalem has driven Mr. Clinton to fits of anger, one official said, adding that on the telephone Mr. Arafat "basically said he's happy to get together and talk sometime, but he doesn't want to take strong measures now".
This gives rise to the paradox of using citizen diplomacy in a global information age — decentralization and diminished control may be central to the creation of soft power, but in an age where every phone is a camera and every computer is a photo shop, the obscure pastor of a small Florida church can also wreak havoc and destroy soft power by threatening to burn a Koran.
