Simplify the following text for a Grade 13 native English-speaking person.
Original: The Mayor proposes policy and the GLA 's budget , and makes appointments to the capital 's strategic transport body ( Transport for London ) and economic development body ( the London Development Agency ) .
Simplified: The Mayor proposes policy and the GLA 's budget , and makes appointments to the capital 's strategic executive such as Transport for London and the London Development Agency .