Barracks recruitment office

Hi is there a way that for example I start an adventure and then realise I dont have the necessary troops be able to use a recruitment office and retrain my troops to be able to become for example cannoneer out of a recruit or visa versa, the resources sent back to town hall or star menu then the newer resources if aplicable are used to retrain the new troops, this will make things a little easier to play the game without deliberately killing off troops just to get the newer troops into the armies.

Regards, Nightdancer

Don't even want to think about but he chaos this idea would cause, not to mention the mountain of support tickets it would generate.

how would this ce chaotic?