United will possibly pay the price for what they did on Sanchez, who is on £505,000-per-week.
They are looking at £50m on Fred, £50-£60m on Alderweireld, £90m plus on Savic and that's without two new full-backs, likely to include a £50m bid for someone such as Alex Sandro - that's best part of £250m right there and the higher wages they will all require - and that's dropping the move for Willian because of Bale.
If you then factor in Bale's £100m cost in conjunction with paying £500k a week - £200k a week more than Pogba - you can start to see how the Sanchez deal was short-sighted.
They did shift Ibrahimovic's wages but he was on a lower deal in his final year and Lukaku came in on £300k a week and also Matic balanced that saving.
United are losing Carrick and Fellaini's wages and will attempt to sell, Blind, Martial, Shaw and Darmian- circa £100m for that lot.
Even if they attempt to trade Pogba for Bale, it means United would literally start next season with an entirely new team and a spend of over £300m before wages -
For context - they are still paying Rooney another £100k a week for a further 12 months, so even their deep pockets will have a bottom.