Trading and holding, buying etc are the key word in marketscap.when altcoins price is slow step price then appropriate to buying and holding, when price is pumping then suitable to trading.
must be smart in seeing the situation to be able to get the price and also we do not need to keep it. now there are many ways to be able to trade including what you say
Being smart in trading thing have got more value than being strong and being wise. There are people who cant just make up to the right time because they are not. Sometimes being wise doesnt work here. Rather you need to be flexible and sharp minded to just cater and observe the change and reasoned to it as soon as possible and in better way. So yeah be smart.