What you are talking about is creating a something like an "invest fund" to place massive buy / sell orders in order to push the marker. It might wirk with coins like BTC or ETH. You will literally make another whale. Maybe it will also make the market more volatile because it won't increase the total volume and liquidity.
But it will never work with low cap coins unless you are trying to act like P&D groups. If you try to group up people  for buying / selling such altcoins at the same time then there is a high chance that you will get a lack of liquidity when you need to place a sell order.