Issues include getting the right commander, with the relevant combat and amphibious experience, in the right place at the right time; and properly locating that place in the military hiearchy, assigning it responsibilities appropriate to the task at hand and discretion sufficienct to the task.
"Negotiated Joint Command Relationships: Korean War Amphibious Operations, 1950,"
Naval War College Review: Vol. 53
, Article 5.
Available at: http://digital-commons.usnwc.edu/nwc-review/vol53/iss2/5