The president needs confirmation of his appointments from the entire board, not the member being appointed.... although that is perhaps a needed requirement. 

Perhaps you missed the entire issue.  Renaud appointed himself, Terry and Cordwell as a committee to represent OPA in dealings with Landscapes Unlimited.

When he made those appointments he did not tell the rest of the board, ask for the entire board vote, or even appoint them via a "without objection" appointment during a meeting of the board. So, if Renaud did not tell the board, how could he have received "tacit approval?" The bylaws say the president can appoint but must have confirmation of the entire board. This is typically done by appointing without objection at a meeting or by a motion and vote at a meeting.

Until now I don't recall it being done privately/unilaterally by the president without even telling the rest of the board members.

Cordwell kept mentioning the prior appointees had no business experience. What experience does Cordwell, or Renaud, or Terry have in running golf courses? I think OPA hired LU for THEIR experience in that regard.

The issue at hand is how LU intends to increase memberships at the golf amenity, as was their admitted business plan when OPA hired them.