One of the most underrated tactics on FM I feel this is. Tried this with Arsenal, didn't make wholesale changes first season and very nearly won every trophy in one season for the first time on FM16, however unfortunately I lost to Man City in the FA Cup final. I did win the League, League Cup and Champions League though, the league especially at a canter.
Second season was a lot tougher, only retaining my league title, some pretty tough draws put pay to my cup runs.
I've then since started a new game with Inter Milan, and with no signings, first season, i'm currently 2nd and I am just into January so just past the halfway mark of the season. I have a 5 point gap to bridge to Juventus, but my main aim is to bring Champions League football back to the club and we are well on course for that.
Great tactic!!!