"Clean house" feels optimistic. Standard procedure for a buy out:
Executives are retained or let go with generous packages
Middle management is summarily executed
Someone sorts a spreadsheet of developers by salary and lays off the highest paid (and sometimes best, though no telling when we're talking about these two garbage fires)
Remaining developers are shuffled. Some are asked to move to teams that are doing wildly different things than what they were doing before. Some teams are filled with lower cost "resources" from other countries.